| Value | Category | Cases | |
|---|---|---|---|
| 1 | <10% | 83 |
7.4%
|
| 2 | 10% - 20% | 448 |
40.1%
|
| 3 | 20% - 30% | 193 |
17.3%
|
| 4 | ?40% | 59 |
5.3%
|
| 5 | 20 |
1.8%
|
|
| 96 | DO NOT KNOW | 240 |
21.5%
|
| 98 | OTHER | 73 |
6.5%
|