| Period | Index | Previous Year | Previous Month |
|---|---|---|---|
| December, 2006 | 83.5 | 1.5% | 0.8% |
| November, 2006 | 82.8 | 1.3% | 0.0% |
| October, 2006 | 82.8 | 1.1% | 0.1% |
| September, 2006 | 82.7 | 1.0% | -0.4% |
| August, 2006 | 83.0 | 1.5% | -0.2% |
| July, 2006 | 83.2 | 1.8% | 0.4% |
| June, 2006 | 82.9 | 2.0% | 0.2% |
| May, 2006 | 82.7 | 1.8% | 0.0% |
| April, 2006 | 82.7 | 2.1% | 0.4% |
| March, 2006 | 82.4 | 1.4% | 0.0% |