| Value | Category |
|---|---|
| -9 | Don’t know |
| -7 | Not in business three years ago |
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| 707 | |
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| 880 | |
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| 965 | |
| 1000 | |
| 1050 | |
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| 1300 | |
| 1435 | |
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| 2200 | |
| 2300 | |
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| 3600 | |
| 3700 | |
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| 4300 | |
| 5000 | |
| 6000 | |
| 7621 |