| Value | Category | Cases | |
|---|---|---|---|
| 1 | 19 | 1 |
0.3%
|
| 2 | 25 | 1 |
0.3%
|
| 3 | 30 | 1 |
0.3%
|
| 4 | 35 | 2 |
0.6%
|
| 5 | 40 | 2 |
0.6%
|
| 6 | 45 | 3 |
0.9%
|
| 7 | 50 | 1 |
0.3%
|
| 8 | 60 | 4 |
1.2%
|
| 9 | 69 | 1 |
0.3%
|
| Missing value | 329 |
95.4%
|