| Risk Class | Description | Rate | |
| 0507 05 | Roofing work | 5.1370 | |
| 05010 00 | Wood frame building construction | 2.9554 | |
| 0513 00 | Interior finish carpentry | 1.3821 | |
| Class | Fiscal Year | Employee Units | Expected Loss Rate | Expected Losses | Primary Ratio | Expected Primary Losses | |||||||
| 4905 | 2005 | 10,571 | .4288 | 4,532.84 | .5790 | 2,624.51 | |||||||
| 4905 | 2006 | 12,437 | .3982 | 4,952.41 | .5790 | 2,867.45 | |||||||
| 4905 | 2007 | 14,676 | .3516 | 5,160.08 | .5790 | 2,987.69 | |||||||
| Class Total | 37,684 | 14,645.33 | 8,479.65 | ||||||||||
| 3905 | 2005 | 24,701 | .1539 | 3,801.48 | .5980 | 2,273.29 | |||||||
| 3905 | 2006 | 35,825 | .1445 | 5,176.71 | .5980 | 3,095.67 | |||||||
| 3905 | 2007 | 47,673 | .1290 | 6,149.82 | .5980 | 3,677.59 | |||||||
| Class Total | 108,199 | 15,128.01 | 9,046.55 | ||||||||||