| Value | Category | Cases | |
|---|---|---|---|
| 0 | 14 |
1.1%
|
|
| 1 | 1 |
0.1%
|
|
| 15 | 3 |
0.2%
|
|
| 30 | 924 |
73.9%
|
|
| 31 | 68 |
5.4%
|
|
| 50 | 1 |
0.1%
|
|
| 60 | 7 |
0.6%
|
|
| 250 | 1 |
0.1%
|
|
| 300 | 1 |
0.1%
|
|
| 365 | 3 |
0.2%
|
|
| Missing value | 227 |
18.2%
|