| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.1%
|
| -7 | Prices are regulated | 210 |
20.5%
|
| -6 | Prices set by HQ | 16 |
1.6%
|
| 1 | Yes | 226 |
22%
|
| 2 | No | 572 |
55.8%
|