| Value | Category |
|---|---|
| -9 | don't know |
| -7 | not in business three years ago |
| 1 | |
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| 364 | |
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| 484 | |
| 498 | |
| 520 | |
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| 600 | |
| 637 | |
| 729 | |
| 750 | |
| 815 | |
| 850 | |
| 877 | |
| 900 | |
| 963 | |
| 1157 | |
| 1200 | |
| 1500 | |
| 2289 | |
| 3200 | |
| 5800 | |
| 13000 |