| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 1397 |
77.3%
|
| 2 | 2 | 38 |
2.1%
|
| 3 | 3 | 1 |
0.1%
|
| 4 | 4 | 1 |
0.1%
|
| 5 | 5 | 5 |
0.3%
|
| 6 | 7 | 1 |
0.1%
|
| 7 | 15 | 1 |
0.1%
|
| Missing value | 363 |
20.1%
|