| Date | Interest rate |
|---|---|
| July 2010 | 0.20% |
| January 2011 | 0.17% |
| July 2011 | 0.14% |
| January 2012 | 0.11% |
| Year | Average 30-Year Rate |
|---|---|
| 1999 | 7.44% |
| 2000 | 8.05% |
| 2001 | 6.97% |
| 2002 | 6.54% |
| Months | Jan | May |
|---|---|---|
| 1988 Rates Points | 10.55 1.85 | 10.57 1.97 |
| 1989 Rates Points | 10.85 1.93 | 10.90 1.94 |
| 1990 Rates Points | 9.99 2.12 | 10.54 2.10 |
| 1991 Rates Points | 9.75 2.03 | 9.59 1.94 |