Weighted class | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | Average 2010/15 |
0% | 25% | 21% | 24% | 24% | 27% | 29% | 25% |
20% | 3% | 5% | 2% | 1% | 1% | 2% | 2% |
35% | 8% | 6% | 12% | 12% | 12% | 12% | 10% |
50% | 12% | 15% | 9% | 9% | 7% | 7% | 10% |
75% | 9% | 12% | 11% | 11% | 8% | 6% | 10% |
100% | 37% | 35% | 34% | 36% | 39% | 41% | 37% |
150% | 5% | 7% | 6% | 7% | 6% | 4% | 6% |
Total | 100% | 100% | 100% | 100% | 100% | 100% | 100% |