| Value | Category | Cases | |
|---|---|---|---|
| 1 | Inherited | 9 |
3.1%
|
| 2 | Marriage | 5 |
1.7%
|
| 3 | Self-started | 268 |
91.2%
|
| 4 | Other (specify) | 3 |
1%
|
| 98 | Don't know | 1 |
0.3%
|
| 99 | Missing | 8 |
2.7%
|
| Sysmiss | 1431 |