| Table 1. Averages of DHI cow herds by herd size, 2001. |
| Records | Milk | Fat | Protein1 | ||||||
| Herd size (cow-years per herd) | Herds | Cow-years | (lbs) | (%) | (lbs) | % Reporting | (%) | (lbs) | % Reporting |
| 5- 24 | 1,151 | 19,019 | 16,674 | 4.01 | 669 | 100 | 3.20 | 534 | 100 |
| 25- 49 | 7,590 | 299,749 | 18,685 | 3.79 | 708 | 100 | 3.06 | 572 | 100 |
| 50- 74 | 8,242 | 502,658 | 19,567 | 3.76 | 737 | 99 | 3.06 | 599 | 99 |
| 75- 99 | 4,358 | 373,579 | 19,898 | 3.75 | 747 | 98 | 3.06 | 611 | 98 |
| 100- 149 | 3,957 | 475,957 | 19,929 | 3.73 | 746 | 98 | 3.07 | 614 | 97 |
| 150- 199 | 1,594 | 274,161 | 20,035 | 3.74 | 757 | 95 | 3.07 | 622 | 95 |
| 200- 299 | 1,476 | 355,640 | 20,428 | 3.70 | 765 | 95 | 3.07 | 633 | 93 |
| 300- 399 | 710 | 244,125 | 21,013 | 3.67 | 785 | 93 | 3.07 | 655 | 90 |
| 400- 499 | 436 | 194,639 | 21,439 | 3.62 | 794 | 92 | 3.06 | 669 | 86 |
| 500- 749 | 601 | 364,945 | 22,058 | 3.62 | 808 | 93 | 3.07 | 688 | 86 |
| 750- 999 | 308 | 265,185 | 22,090 | 3.62 | 809 | 94 | 3.08 | 693 | 85 |
| 1,000-1,499 | 299 | 363,964 | 22,276 | 3.61 | 811 | 95 | 3.10 | 696 | 84 |
| 1,500-1,999 | 136 | 235,696 | 22,592 | 3.60 | 819 | 98 | 3.12 | 707 | 90 |
| 2,000-2,999 | 90 | 214,086 | 22,289 | 3.57 | 798 | 98 | 3.10 | 695 | 87 |
| 3,000-3,999 | 36 | 123,527 | 22,673 | 3.63 | 824 | 97 | 3.08 | 694 | 87 |
| 4,000+ | 17 | 84,871 | 22,452 | 3.56 | 800 | 100 | 3.11 | 695 | 94 |
| All Herds | 31,001 | 4,391,799 | 20,846 | 3.68 | 772 | 96 | 3.08 | 644 | 92 |
| 1Protein means are a mixture of true and crude protein. |