| Year | 1-99 Head |
100-499 Head |
500-999 Head 1/ |
1000-1999 Head 2/ |
2000+ Head 3/ |
| 1987 | 5.8 | 28.8 | 65.4 | ||
| 1988 | 5.7 | 28.7 | 27.9 | 37.7 | |
| 1989 | 5.0 | 27.0 | 25.0 | 43.0 | |
| 1990 | 4.5 | 27.5 | 24.0 | 44.0 | |
| 1991 | 4.0 | 26.0 | 25.0 | 45.0 | |
| 1992 | 3.5 | 23.0 | 22.5 | 21.0 | 30.0 |
| 1993 | 3.0 | 20.0 | 24.0 | 21.0 | 32.0 |
| 1994 | 2.5 | 18.5 | 24.0 | 20.0 | 35.0 |
| 1995 | 2.5 | 18.5 | 20.0 | 21.0 | 38.0 |
| 1996 | 2.0 | 18.0 | 18.0 | 21.0 | 41.0 |
| Year | 1-49 Head |
50-99 Head |
100-499 Head |
500-999 Head 1/ |
1000+ Head 2/ |
| 1987 | 20.4 | 22.4 | 45.9 | 11.3 | |
| 1988 | 21.0 | 20.4 | 48.3 | 10.3 | |
| 1989 | 24.0 | 21.0 | 44.0 | 11.0 | |
| 1990 | 23.5 | 22.0 | 43.0 | 11.5 | |
| 1991 | 25.0 | 24.0 | 41.0 | 10.0 | |
| 1992 | 23.0 | 23.0 | 42.0 | 12.0 | |
| 1993 | 22.0 | 20.0 | 47.0 | 6.3 | 4.7 |
| 1994 | 20.0 | 21.0 | 48.0 | 5.8 | 5.2 |
| 1995 | 18.0 | 21.0 | 49.0 | 5.8 | 6.2 |
| 1996 | 19.0 | 21.0 | 49.0 | 6.5 | 4.5 |
| Illinois Agricultural Statistics Service Annual Summary - 1997 |
Page 75 |
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