| Value | Category | Cases | |
|---|---|---|---|
| -9 | missing | 0 |
0%
|
| -8 | dont know | 0 |
0%
|
| -7 | na | 0 |
0%
|
| 0 | not answered | 2003 |
98.9%
|
| 1 | yes | 23 |
1.1%
|