|
Year
|
Iowa
|
South Carolina
|
|
|
|
|
1960
|
656
|
3,424
|
|
1961
|
643
|
3,318
|
|
1962
|
559
|
3,012
|
|
1963
|
629
|
4,075
|
|
1964
|
1,007
|
4,240
|
|
1965
|
1,067
|
4,504
|
|
1966
|
1,214
|
5,844
|
|
1967
|
1,608
|
6,015
|
|
1968
|
1,882
|
5,853
|
|
1969
|
1,918
|
6,449
|
|
1970
|
2,241
|
7,412
|
|
1971
|
2,822
|
8,188
|
|
1972
|
2,519
|
10,312
|
|
1973
|
2,970
|
10,757
|
|
1974
|
3,455
|
12,688
|
|
1975
|
4,039
|
14,412
|
|
1976
|
3,813
|
17,065
|
|
1977
|
4,145
|
18,297
|
|
1978
|
4,674
|
18,604
|
|
1979
|
5,259
|
19,889
|
|
1980
|
5,826
|
20,225
|
|
1981
|
5,915
|
20,275
|
|
1982
|
5,018
|
23,061
|
|
1983
|
5,262
|
20,133
|
|
1984
|
5,781
|
20,607
|
|
1985
|
6,106
|
21,121
|
|
1986
|
6,703
|
22,789
|
|
1987
|
6,553
|
22,773
|
|
1988
|
7,279
|
25,889
|
|
1989
|
7,563
|
28,576
|
|
1990
|
8,321
|
34,050
|
|
1991
|
8,477
|
34,621
|
|
1992
|
7,816
|
34,029
|
|
1993
|
9,159
|
37,281
|
|
1994
|
8,914
|
37,756
|
|
1995
|
10,071
|
36,067
|
|
1996
|
7,771
|
36,875
|
|
1997
|
8,841
|
37,235
|
|
1998
|
8,916
|
34,647
|
|
1999
|
8,034
|
32,920
|
|
2000
|
7,796
|
33,225
|
|
2001
|
7,865
|
29,265
|
|
2002
|
8,388
|
33,761
|
|
2003
|
8,175
|
33,455
|
|
2004
|
8,003
|
32,922
|
| more... |
more... |
more... |
|
|
OK to share with attribution
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