| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 136 |
7.4%
|
| 2 | 1 | 9 |
0.5%
|
| 3 | 98 | 5 |
0.3%
|
| 4 | 99 | 2 |
0.1%
|
| Missing value | 1692 |
91.8%
|