| Value | Category | Cases | |
|---|---|---|---|
| 1 | throughout the entire year | 3324 |
67.3%
|
| 2 | last six months | 1233 |
25%
|
| 3 | last three months | 219 |
4.4%
|
| 4 | last month | 48 |
1%
|
| 5 | intermittently | 113 |
2.3%
|
| Sysmiss | 44249 |