Value | Category | Cases | |
---|---|---|---|
1 | 1 yr or less | 360 |
50.3%
|
2 | between 1 and 2 yrs | 153 |
21.4%
|
3 | more than 2 yrs | 169 |
23.6%
|
4 | never | 32 |
4.5%
|
77 | don't know | 2 |
0.3%
|
Sysmiss | 579 |