| 2016-10-19 10:00:00 | 1.8% | 1.8% | 1.8% |
| 2016-07-15 10:00:00 | 6.7% | 6.6% | 6.7% |
| 2014-07-16 10:00:00 | 7.5% | -- | 7.4% |
| 2014-04-16 10:00:00 | 7.4% | 7.3% | 7.7% |
| 2014-01-20 10:00:00 | 7.7% | 7.6% | 7.8% |
| 2013-10-18 10:00:00 | 7.8% | 7.8% | 7.5% |
| 2013-07-15 10:00:00 | 7.5% | 7.5% | 7.7% |
| 2013-04-15 10:00:00 | 7.7% | -- | 7.9% |
| 2013-01-18 10:00:00 | 7.9% | -- | 7.4% |
| 2012-10-18 10:00:00 | 7.4% | 7.4% | 7.6% |
| 2012-07-13 10:00:00 | 7.6% | -- | 8.1% |
| 2012-04-13 10:00:00 | 8.1% | 8.4% | 8.9% |
| 2012-01-17 10:00:00 | 8.9% | 8.6% | 9.1% |
| 2011-10-18 10:00:00 | 9.1% | 9.2% | 9.5% |
| 2011-07-13 10:00:00 | 9.5% | -- | 9.7% |
| 2011-04-15 10:00:00 | 9.7% | -- | 10.3% |
| 2011-01-20 10:00:00 | 10.3% | -- | 10.6% |
| 2010-10-15 00:00:00 | 10.6% | -- | 11.1% |
| 2010-07-15 00:00:00 | 11.1% | -- | 11.9% |
| 2010-04-15 00:00:00 | 11.9% | -- | 9.2% |