| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 |
0.7%
|
| -7 | Prices are regulated | 59 |
4.9%
|
| -6 | Prices set by HQ | 60 |
4.9%
|
| 1 | Yes | 191 |
15.7%
|
| 2 | No | 898 |
73.8%
|