| Up to 1 year |  2.6% |
| Less then 5 years |  9.6% |
| 5 - 10 years |  12.3% |
| 10 - 20 years |  13.1% |
| 20 - 40 years |  31.6% |
| 40 - 60 years |  15.7% |
| 60 - 80 years |  3.8% |
| 80 - 100 years |  2.6% |
| Over 100 years |  5.3% |
| I don't know |  3.5% |
