| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
0.5%
|
| -7 | Prices are regulated | 71 |
11.8%
|
| -6 | Prices set by HQ | 24 |
4%
|
| 1 | Yes | 191 |
31.8%
|
| 2 | No | 311 |
51.8%
|