| Value | Category | Cases | |
|---|---|---|---|
| 1 | daily | 643 |
34.1%
|
| 2 | twice a week | 197 |
10.5%
|
| 3 | once a week | 306 |
16.2%
|
| 4 | every two weeks | 108 |
5.7%
|
| 5 | once a month | 336 |
17.8%
|
| 6 | every three months | 140 |
7.4%
|
| 7 | every six months | 52 |
2.8%
|
| 8 | once a year | 79 |
4.2%
|
| 9 | less than once a year | 19 |
1%
|
| 10 | dead | 4 |
0.2%
|