Value | Category | Cases | |
---|---|---|---|
0 | neither certificate or registered | 132 |
0.8%
|
1 | has certificate | 157 |
1%
|
2 | registered | 33 |
0.2%
|
8 | don't know | 6 |
0%
|
9 | 2 |
0%
|
|
11 | .Z | 15337 |