| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1575 |
88.5%
|
|
| 1 | 1 |
0.1%
|
|
| 4 | 1 |
0.1%
|
|
| 5 | 2 |
0.1%
|
|
| 6 | 1 |
0.1%
|
|
| 10 | 6 |
0.3%
|
|
| 15 | 22 |
1.2%
|
|
| 20 | 12 |
0.7%
|
|
| 30 | 109 |
6.1%
|
|
| 40 | 3 |
0.2%
|
|
| 45 | 10 |
0.6%
|
|
| 46 | 1 |
0.1%
|
|
| 77 | Don't know | 20 |
1.1%
|
| 99 | Missing | 17 |
1%
|