Value | Category | Cases | |
---|---|---|---|
1 | 1 yr or less | 117 |
7%
|
2 | between 1 and 2 yrs | 83 |
5%
|
3 | more than 2 yrs | 199 |
11.9%
|
4 | never | 1261 |
75.6%
|
77 | don't know | 8 |
0.5%
|
Sysmiss | 1296 |