| Value | Category | Cases | |
|---|---|---|---|
| 1 | PER MONTH | 1301 |
77.7%
|
| 2 | PER YEAR | 33 |
2%
|
| 7 | DO NOT KNOW | 340 |
20.3%
|
| 9 | missing | 0 |
0%
|
| Sysmiss | 822 |