| Value | Category | Cases | |
|---|---|---|---|
| 1 | Distance | 229 |
7.5%
|
| 2 | Ignorance | 124 |
4%
|
| 3 | Lack of funds | 154 |
5%
|
| 4 | Not necessary | 309 |
10.1%
|
| 5 | Other | 2253 |
73.4%
|
| Sysmiss | 19953 |