| Value | Category | 
|---|---|
| -9 | don't know | 
| -7 | not in business three years ago | 
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| 9 | |
| 10 | |
| 11 | |
| 12 | |
| 13 | |
| 14 | |
| 15 | |
| 16 | |
| 17 | |
| 18 | |
| 19 | |
| 20 | |
| 21 | |
| 22 | |
| 23 | |
| 24 | |
| 25 | |
| 26 | |
| 27 | |
| 28 | |
| 30 | |
| 32 | |
| 33 | |
| 34 | |
| 35 | |
| 38 | |
| 40 | |
| 42 | |
| 45 | |
| 46 | |
| 47 | |
| 48 | |
| 50 | |
| 53 | |
| 54 | |
| 56 | |
| 59 | |
| 60 | |
| 62 | |
| 64 | |
| 65 | |
| 68 | |
| 70 | |
| 71 | |
| 74 | |
| 75 | |
| 80 | |
| 89 | |
| 90 | |
| 91 | |
| 95 | |
| 97 | |
| 99 | |
| 100 | |
| 110 | |
| 120 | |
| 124 | |
| 125 | |
| 130 | |
| 138 | |
| 140 | |
| 150 | |
| 160 | |
| 180 | |
| 185 | |
| 190 | |
| 200 | |
| 202 | |
| 210 | |
| 212 | |
| 230 | |
| 250 | |
| 270 | |
| 280 | |
| 300 | |
| 350 | |
| 380 | |
| 390 | |
| 400 | |
| 450 | |
| 520 | |
| 530 | |
| 650 | |
| 700 | |
| 730 | |
| 858 | |
| 950 | |
| 1100 | |
| 1200 | |
| 2000 |