| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 32349 |
75.6%
|
| 1 | 1 to 4 heads | 9504 |
22.2%
|
| 2 | 5 to 9 heads | 782 |
1.8%
|
| 3 | 10 to 19 heads | 150 |
0.4%
|
| 4 | 20 heads and over | 31 |
0.1%
|
| Sysmiss | 174 |