| No. of survey recipients | No. of surveys returned | Acres (hectares) reported | % of total | |
|---|---|---|---|---|
| Canada | 9 | 4 | 777,414 (314,609) | 30 |
| Northeastern U.S. | 39 | 12 | 211,876 (85,744) | 8 |
| North central U.S. | 59 | 22 | 627,518 (253,948) | 24 |
| Southern U.S. | 70 | 29 | 824,101 (333,503) | 32 |
| Western U.S. | 43 | 14 | 159,578 (64,579) | 6 |
| Total | 220 | 81 | 2,600,487 (1,052,383) | 100 |
| % returned overall | 37 |