| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, without a referral note | 2511 |
16.6%
|
| 2 | Yes, with a referral note | 944 |
6.2%
|
| 3 | No | 11560 |
76.3%
|
| 8 | D/K | 0 |
0%
|
| 9 | Missing | 139 |
0.9%
|