| Value | Category | Cases | |
|---|---|---|---|
| 1 | too expensive | 3310 |
70%
|
| 2 | difficult to obtain locally | 112 |
2.4%
|
| 3 | no good service for it | 8 |
0.2%
|
| 4 | workers not qualified for it | 194 |
4.1%
|
| 5 | other | 1106 |
23.4%
|
| Sysmiss | 480 |