| Value | Category | Cases | |
|---|---|---|---|
| 0 | 997 |
32.6%
|
|
| 2 | 3 |
0.1%
|
|
| 3 | 1 |
0%
|
|
| 5 | 2 |
0.1%
|
|
| 6 | 2 |
0.1%
|
|
| 8 | 2 |
0.1%
|
|
| 15 | 1 |
0%
|
|
| Missing value | 2050 |
67%
|