| Value | Category | Cases | |
|---|---|---|---|
| 0 | Received no injection | 1747 |
18.7%
|
| 1 | 4711 |
50.5%
|
|
| 2 | 2253 |
24.1%
|
|
| 3 | 471 |
5%
|
|
| 4 | 47 |
0.5%
|
|
| 5 | 54 |
0.6%
|
|
| 6 | 1 |
0%
|
|
| 7 | 7+ | 0 |
0%
|
| 8 | Don't know | 49 |
0.5%
|
| 9 | 20 | ||
| Sysmiss | 39854 |