| Value | Category | Cases | |
|---|---|---|---|
| 1 | TWICE A MONTH | 9 |
8.3%
|
| 2 | ONCE A MONTH | 16 |
14.7%
|
| 3 | ONCE IN TWO MONTHS | 4 |
3.7%
|
| 4 | ONCE IN THREE MONTHS | 7 |
6.4%
|
| 5 | TWICE A YEAR | 0 |
0%
|
| 6 | ONCE A YEAR | 4 |
3.7%
|
| 7 | irregularly | 49 |
45%
|
| 8 | never | 20 |
18.3%
|