| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Prices are regulated | 44 |
12.4%
|
| -6 | Prices set by HQ | 23 |
6.5%
|
| 1 | Yes | 95 |
26.8%
|
| 2 | No | 192 |
54.2%
|