# I 
Table 3-—Trends in the breeding-population index, 1957-64 
i & 
gtate 
1957 
1958 
1959 
i 960 
1961 
1962 
1963 
1964 
Idaho 
' 27.0 
23.8 
26.7 
30.8 
27.2 
27.6 
27.6 
31-2 
1,341 
1,183 
1,327 
1,530 
1,351 
1,371 
1,371 
1,550 
Illinois 
30-3 
32.8 
33.2 
31.6 
36.0 
29.3 
30.0 
27 .O 
1,695 
1,835 
1,857 
1,768 
2,0l4 
1,639 
1,678 
1,511 
Indiana 
32.8 
34.0 
35-4 
26.8 
30.2 
25.0 
28.6 
29.5 
1,188 
1,231 
1,282 
970 
1,093 
905 
1,035 
1,068 
Iova 
57-6 
50.6 
82.6 
66.0 
82.5 
80.0 
72.2 
75.1 
3,225 
2,833 
4,624 
3,695 
4,619 
4,479 
4,044 
4,205 
Kansas 
42.9 
42.9 
50.2 
61.7 
62.7 
63.8 
56.5 
60.2 
3,952 
3,952 
4,624 
5,683 
5,775 
5,877 
5,204 
5,545 
Kentucky 
22.3 
27.8 
27.4 
28.3 
26.7 
27.1 
25.6 
28.9 
894 
1,115 
1,099 
1,135 
1,071 
1,086 
1,027 
1,159 
Louisiana 
17.0 
15.9 
13.8 
14.8 
13-7 
10.9 
12.8 
io.4 
768 
718 
623 
669 
619 
492 
579 
470 
Maine* 
1.5 
2.5 
3.0 
3-0 
1.3 
0.0 
Maryland 
17.8 
17.0 
19.7 
17.0 
15.7 
19-0 
19-4 
19.6 
167 
160 
185 
160 
l47 
178 
182 
184 
Massachusetts 
8.3 
3.7 
5-3 
7.6 
5.0 
6.7 
3.9 
5.0 
16 
7 
10 
15 
10 
13 
8 
10 
Michigan 
22.1 
24.8 
30.1 
27.2 
28.8 
22.9 
33-8 
25.7 
630 
707 
858 
775 
821 
653 
964 
733 
Minnesota 
33.1 
28.9 
24.1 
23.4 
30.1 
24.9 
25-1 
31.6 
1,986 
1,734 
1,446 
l,4o4 
1,806 
1,494 
1,506 
1,896 
Mississippi 
26.0 
31.7 
25.8 
25.9 
22.7 
24.2 
20.9 
24.0 
1,233 
1,503 
1,223 
1,228 
1,076 
1,148 
989 
1,138 
Missouri 
6l.O 
52.7 
46.4 
49-5 
44.6 
42.1 
36.2 
39.7 
4,225 
3,651 
3,214 
3,429 
3,089 
2,916 
2,507 
2,750 
-15- 
