| Value | Category |
|---|---|
| -9 | Don’t know |
| -7 | Not in business three years ago |
| 1 | |
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| 56 | |
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| 92 | |
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| 122 | |
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| 136 | |
| 138 | |
| 145 | |
| 157 | |
| 160 | |
| 163 | |
| 180 | |
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| 210 | |
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| 230 | |
| 250 | |
| 320 | |
| 328 | |
| 350 | |
| 392 | |
| 450 | |
| 600 | |
| 650 | |
| 950 | |
| 1400 | |
| 2500 |