| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 1127256 |
11.5%
|
| 2 | No | 2545009 |
25.9%
|
| 3 | Do not know | 444975 |
4.5%
|
| 4 | Not applicable | 1910205 |
19.5%
|
| 8 | Unknown | 14960 |
0.2%
|
| 9 | Unspecified | 3766219 |
38.4%
|