| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 6 |
0.8%
|
| 2 | Monthly | 73 |
9.6%
|
| 3 | Quarterly | 74 |
9.7%
|
| 4 | No specific pattern | 595 |
78.1%
|
| 5 | Twice every 3 months | 1 |
0.1%
|
| 6 | Every two months | 1 |
0.1%
|
| 7 | Twice each school term | 1 |
0.1%
|
| 8 | Each school term | 5 |
0.7%
|
| 9 | Twice a year | 1 |
0.1%
|
| 10 | Yearly | 1 |
0.1%
|
| 95 | Others | 4 |
0.5%
|
| 99 | Not specified | 0 |
0%
|
| Sysmiss | 3236 |