| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very common | 170 |
7.5%
|
| 2 | Fairly common | 337 |
14.8%
|
| 3 | Fairly rare | 522 |
23%
|
| 4 | Very rare | 1078 |
47.5%
|
| 9 | Don't know | 146 |
6.4%
|
| 98 | Refused to answer | 1 |
0%
|
| 99 | Missing Data | 17 |
0.7%
|