| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily basis | 93 |
10.4%
|
| 2 | Weekly basis | 151 |
16.9%
|
| 3 | Monthly basis | 550 |
61.5%
|
| 4 | Quarterly basis | 63 |
7%
|
| 5 | Yearly basis | 38 |
4.2%
|
| 99 | Not specified | 0 |
0%
|
| Sysmiss | 3103 |