| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.1%
|
| -7 | Prices are regulated | 425 |
42%
|
| -6 | Prices set by HQ | 14 |
1.4%
|
| 1 | Yes | 234 |
23.1%
|
| 2 | No | 339 |
33.5%
|