| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Prices are regulated | 24 |
15.4%
|
| -6 | Prices set by HQ | 3 |
1.9%
|
| 1 | Yes | 28 |
17.9%
|
| 2 | No | 101 |
64.7%
|