| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Currently and regularly implemented | 150 |
48.7%
|
| 2 | 2. Still implemented,but not routine | 31 |
10.1%
|
| 3 | 3. Conducted once but no longer implemented | 14 |
4.5%
|
| 4 | 4. Never conducted | 113 |
36.7%
|
| 9 | 9. Missing | 0 |
0%
|