| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 26 |
2.6%
|
| -7 | Prices are regulated | 187 |
18.6%
|
| -6 | Prices set by HQ | 94 |
9.3%
|
| 1 | Yes | 314 |
31.2%
|
| 2 | No | 387 |
38.4%
|