| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very common | 117 |
5.2%
|
| 2 | Fairly common | 264 |
11.6%
|
| 3 | Fairly rare | 389 |
17.1%
|
| 4 | Very rare | 1322 |
58.2%
|
| 9 | Don't know | 168 |
7.4%
|
| 98 | Refused to answer | 1 |
0%
|
| 99 | Missing Data | 10 |
0.4%
|