| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 21 |
48.8%
|
| 0 | 1 |
2.3%
|
|
| 300 | 1 |
2.3%
|
|
| 600 | 1 |
2.3%
|
|
| 1500 | 1 |
2.3%
|
|
| 1600 | 1 |
2.3%
|
|
| 1750 | 1 |
2.3%
|
|
| 2000 | 4 |
9.3%
|
|
| 2500 | 3 |
7%
|
|
| 2700 | 1 |
2.3%
|
|
| 3000 | 1 |
2.3%
|
|
| 30000 | 3 |
7%
|
|
| 33000 | 1 |
2.3%
|
|
| 36000 | 1 |
2.3%
|
|
| 40000 | 1 |
2.3%
|
|
| 72000 | 1 |
2.3%
|
|
| Sysmiss | 54 |