| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES, PRIMARY ONLY | 349 |
3.8%
|
| 2 | YES, SECONDARY ONLY | 115 |
1.2%
|
| 3 | YES, BOTH | 21 |
0.2%
|
| 4 | NONE | 8718 |
94.7%
|
| Sysmiss | 17962 |