| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.3%
|
| -7 | Prices are regulated | 94 |
26.1%
|
| -6 | Prices set by HQ | 10 |
2.8%
|
| 1 | Yes | 71 |
19.7%
|
| 2 | No | 184 |
51.1%
|