U.S. foreign trade

A Jne3 S T
EPAITMENT OF

PUBCATION


SU.S. FOREIGN TRADE


< AIRBORNE EXPORTS


GENERAL IMPORTS


MAY 1972


FT 986-72-5
July 1972


Shipping Weight and Value;

Customs District and Continent


This report presents statistics on U.S. exports and
imports by air in U.S. customs district by continent
arrangement. Data have been compiled from Shipper's
Export Declarations (Commerce Form 7525-V) and
import entries during the regular processing of statis-
tical data on foreign trade shipments. The customs
districts shown in this report are those having combined
exports and imports by air valued at $1.5 million or more
during the preceding calendar year. A complete list of
customs districts and ports is presented in Schedule D,
Classification of U.S. Customs Districts and Ports for
U.S. Foreign Trade Statistics, January 1, 1972 edition,
as amended.
Exports
These statistics represent exports of domestic and
foreign merchandise combined and include government
and nongovernment shipments of merchandise by air
from the United States to foreign countries. The
statistics, therefore, include Department of Defense
Military Assistance Program--Grant-Aid shipments,
shipments for economic assistance under the Foreign
Assistance Act, and shipments of agricultural commod-
ities under P.L. 480 (The Agricultural Trade Development
and Assistance Act of 1954, as amended) and related laws.
Shipments to U.S. Armed Forces anddiplomatic missions
abroad for their own use are not included in the export
statistics. U.S. trade with Puerto Rico and U.S.
possessions and trade between U.S. possessions are not
included in this report, but exports from Puerto Rico to
foreign countries are included as a part of the U.S.
export statistics. Merchandise shipped through the
United States in transit from one foreign country to
another, when documented as such with U.S. Customs,
is excluded. (Foreign merchandise that has entered the
United States as an import and is subsequently reexported
is not treated as in-transit merchandise, and is included


in this report.) The figures in this report exclude ex-
ports of household and personal effects, shipments by
mail and parcel post, and shipments of airplanes under
their own power.
For security reasons, certain commodities are desig-
nated as Special Category commodities, for which
security regulations place restrictions upon the export
information that may be released. The data shown in
this report for individual customs districts and conti-
nents exclude exports of Special Category commodities,
but overall shipping weight and value totals for Special
Category commodities are shown. A list of Special
Category commodities may be obtained from the Bureau
of the Census.
The statistics on exports of domestic and foreign
merchandise to countries other than Canada reflect fully
compiled data for shipments valued $500 and over
combined with estimated data for shipments valued
$251-$499, based on a 50-percent probability sample
of such shipments. For exports to Canada the statistics
reflect fully compiled data for shipments valued $2,000
and over combined with estimated data for shipments
valued $251-$1,999, based on a 10-percent probability
sample of such shipments. Shipping weight and value
data are also estimated for shipments valued under $251.
These estimates are not included in the data shown for
Individual customs districts.

Since the export figures shown include estimates
based on a sample of low-valued shipments, they are
subject to some degree of sampling variability. The
table on the following page provides a rough guide to
the general level of sampling variability of value totals,
on a 2 chances out of 3 basis. Usually, the higher value
figures will have the lower percent sampling errors.


For sale by the Bureau of the Census, Washington, D.C. 20233. Price 10 cents per copy. Annual subscription
(FT 900, 975. 985. and 986 combined) $3.00.












Proportion of cells with
Value totals for
"Total" and "North
America" of- under under under under
2% 5% 10% 20%

$1,000,000 and over .60 .75 .85 1.00

$500,000-$1,000,000 .20 1.00

$100,000-$500,000 .30 .45 .70 1.00

$20,000-$100,000 .35 .70 1.00

Cells of under $20,000 Are likely to have sampling
variability from $3,000 to
$15,000

Value totals for Are likely to have sampling
continents of South variability or-
America, Europe, Asia,
Australia and Oceania,
and Africa of-


$300,000 and over less than 2%

$100,000-$300,000 Less than 5% with over half
of the totals less than 2%

$20,000-$100,000 Generally less than 10l
with over half of the
totals less than 5%9

Under $20,000 Generally $500 Ito $5,000

Cells of $0 Generally less than $500


The sampling variability of shipping weight figures, in
percentage terms, can be approximated by the percent
sampling variability of value.

Imports

These statistics represent general imports, which are
a combination of imports for immediate consumption


and entries into bonded warehouses. The statistics
include government as well as nongovernment shipments
of merchandise by air from foreign countries to the
United States. However, American goods returned by
the U.S. Armed Forces for their own use are excluded.
U.S. trade with Puerto Rico and with U.S. possessions
and trade between U.S. possessions are not included in
this report, but imports into Puerto Rico from foreign
countries are considered to be U.S. imports and are
included. Merchandise shipped through the United States
in transit from one foreign country to another, when
documented as such through U.S. Customs, is not re-
ported as imports and is excluded from the data shown
in this report, (Foreign merchandise that has entered
the United States as an import and is subsequently re-
exported is not treated as in-transit merchandise and is
included in this report.) Imports of household and
personal effects, imports by mail and parcel post, and
imports of airplanes under their own power are not
included.


The statistics shown for individual customs districts
represent fully compiled data for shipments valued $251
and over. Data for shipments valued under $251, re-
ported on formal and informal entries (informal entries
generally contain items valued under $251), are estimated
from a 1-percent sample. Separate shipping weight and
value estimates for shipments valued under $251 are
shown. The shipping weight data are estimated from the
values on the basis of constants that have been derived
from an observation of the value-weight relationships
in past periods.



Since the statistics showing total value of imports
by all carriers include sample estimates, they are
subject to sampling variability. In general, the higher
value figures will have the lower percent sampling
errors. Value totals of $500,000 and over will generally
have a sampling variability of less than 3 percent; value
totals of under $500,000 will generally have a sampling
variability of less than $50,000.









Table 1. Selected Customs Districts of Lading by Continent

(Data shown represent domestic and foreign merchandise. Shipments of Special Category commodities are excluded from all district and continent data. Estimated shipments valued under 5251are excluded from all district data
and data for U.S. flag carriers) ,


Shipping weight (1,000 pounds) _Value (1,000 dollars)

Total Total
Customs district North South Australia oah South E Australia
All U.. America America Europe Asia and Africa AllU.S. Aeca A rica Europe Asia and Africa
flag merica merica Oceania flag Oceania
ca carriers carriers carriers


Total, all carriers...

U.S. flag carriers......

Boston, Mass...........
Bridgeport, Conn........
Ogdensburg, N.Y..........
Buffalo, N.Y............
New York City, N.Y......

Philadelphia, Pa ........
Baltimore, Md...........
Wilmington, N.C.........
Charleston, S.C .........
Savannah, Ga............

Tampa, Fla..............
Mobile, Ala.............
New Orleans, La.........
Laredo, Tex.............
El Paso, Tex............

Nogales, Arlz...........
Los Angeles, Calif......
San Francisco, Calif....
Portland, Oreg...........
Seattle, Wash...........

Anchorage, Alaska.......
Honolulu, Hawaii........
Great Falls, Mont.......
Pembina, N. Dak.........
Minneapolis, Minn.......

Detroit, Mich...........
Chicago, 11............
Cleveland, Ohio.........
St. Louis, Mo ...........
San Juan, P.R............

Miami, Fla..............
Houston, Tex.............
Washington, D.C.........

All other districts.....
Shipments under $251....
Special Category........


84,072

I.X)
1,964
12
1
222
34,678
756
79

57
355

82
17
310
252
111
22
4,742
2,597
53
1,277
152
292
62
kZ)
300

1,502
7,091
288
28
965

12,892
921
540

59
10,458
933


I.X)

29,783
806
12

214
10,821
437
63

57
221

(Z)
17
69
136
111
6
1,853
1,340
53
957
94
140
59
IZ)
238

1,253
3,384
52
28
713

5,663
311
163

42
(NA
469


19,712

7,874
317


222


10,573

3,142

iZ)


2,326 2,423


110
51

(z)
49

81

301
238
111

21
761
138
9
233
85
64
59

211
338
2,180
219
5
868

5,954
300
3

25
4,432
(D)


57


,z)
37



9




163
41

2







31
3


75

6,590
98
79


966
(D I


38,457

12,324

1,604
12
1
(z)
24,559
355
11

40
254

1


(Z)



1,499
406
43
256
4
IZJ


7

1,102
3,921
64
22
21
323
199
453

34
3,265
ID)


11,473

5,279

20

(Z)

4,173
205
17

10
15

(Z)
17

14


1
2,001
1,657
1
779
63
125
3
Z .)
82
17
866
ix)
(Z)

iz)
20
133
5


1,249
ID


1,268
321

18

(z)

212
4


5



(z)

1z)



278
341

I


103




6
9




1
IZI
I Z 1



290
ID)


1,655

375
4



984
25


1
(Z)








41
14
iZ)
6







9
111
5
(Z)
1

5
192
1


256
(D)


642,954 (X) 76,857 55,856


(X.)
16,487
123
41
2,038
340,275
7,667
898

259
4,066

222
188
1,080
818
573
103
56,212
35,319
965
9,866
409
1,214
483
1
6,110
9,285
44,238
2,130
484
3,998
47,840
5,684
9,102

169
23,041
11,564


226,817

8,381
123

2,024
109,807
3,091
179

259
725

2
188
332
551
571
19
19,373
13,437
965
5,855
200
533
478
1
5,614

8,334
21,130
384
484
2,028
13,476
1,939
1,011

108
5,215
5,215


35,028

1,763


2,015
14,679
501
144

1
220

218

1,029
744
573

65
7,900
1,716
79
1,840
9
229
478

1,400

2,083
12,815
1,499
34
1,831

13,142
1,746
26

63
8,016
ID. ,


10,912

3



15,097
313


4
663



51




2,253
360

14







52
16


703

32,887
733
688


2,020
ID)


360,794

117,505

13,880
123
29
24
259,559
4,487
52

84
2,759

2


3



18,348
3,639
848
2,790
111
1


138
6,876
24,549
592
446
1,395
1,697
1,714
8,288

106
8,254
tDI


114,831

52,556

307

1

41,273
2,249
702

102
423

2
180

71


39
23,983
24,823
33
5,056
288
593
4
1
4,572
102
6,012
18
2
1
70
817
84


3,023
(DI


12,770

2,990

447

10

2,976
13


58



8

1



3,172
4,661

3


391




57
107




3
2



863
(D)


I I I I I I I I I I l a


Represents zero.
than 500 pounds or $500.


D Data withheld to avoid disclosure of information for security reasons.


X Not applicable.


10,281

2,611
89



6,691
105

C
12
2



0
U
--



555
120
4 O
164







116
739
21
2
69
40
671
16


866
(D)


Z Less


I


I


I


ill


I


ill


NA Not available.











Table 2. Selected Customs Districts of Unlading by Continent

(Estimated shipments valued under $251 are excluded from all district data and data for U.S. flag carriers. Total columns include a small amount of shipments which are unidentified by continent)

Shipping weight (1,000 pounds) Value (1,000 dollars)

Total Total
Customs district North South Australia Australia
AllC s Ameria ASmerca Europe Asia and Africa All U.S ca A ca Europe Asia Africa
All U.S. America America aidiAfrica
carriers flag carriers flag Oceania
careers carriers carriers

Total, all carriers.. 71,383 (Xi 8,865 7,068 38,299 16,462 345 298 400,496 (XI 30,129 12,723 238,158 102,184 2,696 14,551
U.S. flag carriers..... (X) 32,615 3,607 2,958 16,150 9,630 179 91 (Xi 195,495 13,169 5,027 115,451 58,273 1,357 2,219
Boston, Mass........... 2,999 1,738 93 6 2,843 56 (Z) 1 13,893 7,865 901 22 12,721 207 4 37
Bridgeport, Conn ....... 1 1 (Z 16 12 13 3 -
Ogdensburg, N.Y ........ 2 (Z) 1 1 (Z' 30 25 27 3 (Z) -
Buffalo, N.Y ........... 143 131 130 1 12 1 1,997 1,780 1,721 (Z) 259 16 -
New York City, N.Y..... 32,944 13,815 680 2,607 24,869 4,504 53 231 200,360 79,587 4,232 7,703 148,710 26,766 552 12,397
Philadelphia, Pa....... 667 385 7 7 620 29 (Z) 4 6,875 4,390 48 17 5,304 343 2 1,161
Baltimore, Md .......... 98 65 6 83 6 tZl 2 800 659 85 610 97 2 8
Wilmington, N.C........ 347 347 347 4,078 4,078 4,078 -
Charleston, S.C ........ 1 1 1 9 8 (Z2 8 -
Savannah, Ga ........... 28 24 4 24 (ZI 555 369 27 528 (Z -
Tamps, Fla............. 24 11 11 9 3 1 (Z' 202 15 149 9 39 4 (1 -
Mobile, Ala............ (Z IZI 'ZI ( ) -
New Orleans, La........ 304 45 299 1 3 (ZI 237 87 206 14 12 6 -
Laredo, Tex............. 139 128 139 Zi (ZI I 273 196 233 (2) 25 14 -
El Paso, Tex........... 18 18 18 -535 526 534 -1 -- -
Nogales, Ariz.......... 13 1 13 (ZI 28 14 20 8 -
Los Angeles, Calif..... 5,932 2,708 293 82 1,103 4,317 126 12 51,468 27,635 4,442 387 17,635 27,794 1,127 83
San Francisco, Calif... 4,341 3,269 49 19 267 3,930 72 4 33,992 22,647 458 87 1,779 30,902 715 51
Portland, Oreg ......... 2 2 2 IZI (Z 14 13 11 2 1 -
Seattle, Wash........... 936 794 96 153 687 1 7,136 5,024 2,099 1,043 3,991 3
Anchorage, Alaska ...... 79 2 75 3 265 11 241 24 -
Honolulu, Hawaii ........ 292 187 37 13 181 61 2,189 1,250 46 555 1,383 206
Great Palls, Mont...... 5 5 5 155 151 155 -
Pembina, N. Dak ........ 13 7 13 (Z) 101 69 100 () -
Minneapolis, Minn...... 238 232 9 (ZI 41 188 1,238 1,205 219 (Zl 490 529 -
Detroit, Mich.......... 1,293 1,026 222 1,039 31 (Z) 1 5,346 4,037 1,057 4,158 130 1 1
Chicago, Ill........... 4,439 2,201 269 18 3,024 1,109 1 17 27,908 13,437 2,783 72 19,004 5,901 38 109
Cleveland, Ohio ........ 174 34 60 89 25 (Z) 803 341 395 359 43 6 -
St. Louis, Mo........... 113 107 (Z' IZI 83 30 2,441 2,421 7 (Z) 2,214 220 -
San Juan, P.R.......... 1,739 806 878 582 232 47 3,404 1,055 1,315 541 1,301 248 -
Miami, Fla.............. 7,906 3,955 3,902 3,523 326 149 (Z) 6 15,048 8,288 6,134 3,137 5,287 443 (Z) 45
Houston, Tax............. 318 116 144 32 111 28 3 4,286 454 837 512 1,170 1,721 47
Washington, D.C........ 493 437 4 (Z' 487 2 (Z) 8,143 7,697 29 1 7,506 14 593
All other districts.... 41 16 7 33 (Z) (21 213 149 49 161 2 2 -
Shipments under $251... 5,299 (NA) 1,473 181 2,417 1,136 31 16 6,460 (NA'I 1,795 221 2,946 1,385 38 19


- Represents zero.


NA Not available,


X Not applicable.


Z Less than 500 pounds or $500.


C


Z
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