| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Prices are regulated | 54 |
9%
|
| -6 | Prices set by HQ | 18 |
3%
|
| 1 | Yes | 119 |
19.9%
|
| 2 | No | 407 |
68.1%
|