| Value | Category |
|---|---|
| -9 | don't know |
| -7 | not in business three years ago |
| 2 | |
| 3 | |
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| 53 | |
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| 270 | |
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| 318 | |
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| 491 | |
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| 530 | |
| 548 | |
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| 800 | |
| 840 | |
| 900 | |
| 1000 | |
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| 1400 | |
| 1500 | |
| 2000 | |
| 2500 | |
| 3000 | |
| 3200 | |
| 3431 | |
| 4000 | |
| 4400 | |
| 7000 | |
| 8000 | |
| 9000 |