| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
3.4%
|
|
| 2 | 2 |
3.4%
|
|
| 10 | 1 |
1.7%
|
|
| 20 | 1 |
1.7%
|
|
| 300 | 1 |
1.7%
|
|
| 305 | 1 |
1.7%
|
|
| 308 | 2 |
3.4%
|
|
| 315 | 1 |
1.7%
|
|
| 644 | 2 |
3.4%
|
|
| Missing value | 46 |
78%
|