| Value | Category | Cases | |
|---|---|---|---|
| 1 | Cost too much | 32 |
1.1%
|
| 2 | Must travel far | 192 |
6.4%
|
| 3 | Did know registration | 154 |
5.1%
|
| 4 | Late | 111 |
3.7%
|
| 5 | Did not know where | 86 |
2.9%
|
| 6 | Did not know how | 103 |
3.4%
|
| 7 | Missing | 277 |
9.2%
|
| 8 | 16 |
0.5%
|
|
| 9 | Other | 67 |
2.2%
|
| Sysmiss | 1966 |
65.4%
|