Distribution of Values for
Market Class (CLASS)
| Code | Definition | Number of Accessions |
| HRS | HARD RED SPRING | 497 |
| HRW | HARD RED WINTER | 687 |
| HWS | HARD WHITE SPRING | 61 |
| HWW | HARD WHITE WINTER | 65 |
| SRW | SOFT RED WINTER | 617 |
| SWS | SOFT WHITE SPRING | 144 |
| SWSC | SOFT WHITE SPRING CLUB | 19 |
| SWW | SOFT WHITE WINTER | 190 |
| SWWC | SOFT WHITE WINTER CLUB | 34 |