| Value | Category |
|---|---|
| -9 | don't know |
| -7 | not in business three years ago |
| 0 | |
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| 570 | |
| 634 | |
| 649 | |
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| 780 | |
| 790 | |
| 830 | |
| 960 | |
| 1000 | |
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| 1120 | |
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| 1300 | |
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| 1498 | |
| 1500 | |
| 1700 | |
| 2000 | |
| 2100 | |
| 2225 | |
| 2300 | |
| 4000 |