| Value | Category | Cases | |
|---|---|---|---|
| 0 | Received no inject. | 535 |
22%
|
| 1 | 227 |
9.3%
|
|
| 2 | 386 |
15.9%
|
|
| 3 | 330 |
13.6%
|
|
| 4 | 338 |
13.9%
|
|
| 5 | 481 |
19.8%
|
|
| 6 | 37 |
1.5%
|
|
| 7 | 7+ | 12 |
0.5%
|
| 8 | Don't know | 89 |
3.7%
|
| 9 | 61 | ||
| Sysmiss | 15925 |