| Value | Category | Cases | |
|---|---|---|---|
| 0 | Received no inject. | 504 |
9.2%
|
| 1 | 1643 |
30%
|
|
| 2 | 2892 |
52.9%
|
|
| 3 | 362 |
6.6%
|
|
| 4 | 19 |
0.3%
|
|
| 5 | 3 |
0.1%
|
|
| 7 | 7+ | 0 |
0%
|
| 8 | Don't know | 45 |
0.8%
|
| 9 | 42 | ||
| Sysmiss | 13930 |