| Value | Category | Cases | |
|---|---|---|---|
| 1 | By Yourself | 3283 |
90.3%
|
| 2 | From Others | 141 |
3.9%
|
| 3 | Half, Half | 207 |
5.7%
|
| 7 | Don't Know | 4 |
0.1%
|
| 9 | Refused | 2 |
0.1%
|
| Sysmiss | 9717 |