| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 99 |
81.8%
|
| 1 | 12 |
9.9%
|
|
| 2 | 7 |
5.8%
|
|
| 98 | Available but Many | 1 |
0.8%
|
| 99 | Available but number unknown | 2 |
1.7%
|
| Sysmiss | 947 |