| Value | Category | Cases | |
|---|---|---|---|
| 0 | No difficulty | 578 |
99.3%
|
| 1 | Slight difficult | 1 |
0.2%
|
| 2 | Moderate difficulty | 3 |
0.5%
|
| 3 | Severe difficulty | 0 |
0%
|
| 4 | Unable to carry out activity | 0 |
0%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 0 | |
| Sysmiss | 2102 |