| Don't have one |  14.4% |
| Brand new |  7.6% |
| 1 year |  5.1% |
| 2 years |  5.9% |
| 3 years |  6.3% |
| 4 years |  6.0% |
| 5 years |  8.1% |
| 6-10 years | 23.2% |
| 11-15 years |  10.4% |
| Over 15 years |  13.2% |
