Value | Category | Cases | |
---|---|---|---|
-9 | NIU (not in universe) | 390 |
13.8%
|
1 | easy to use method | 1222 |
43.3%
|
2 | hard to use method | 1180 |
41.8%
|
98 | don't know | 30 |
1.1%
|
9999995 | missing:impute | 0 |
0%
|