| Period | Index | Previous Year | Previous Month |
|---|---|---|---|
| December, 2001 | 77.7 | 1.7% | 1.0% |
| November, 2001 | 76.9 | 1.5% | -0.3% |
| October, 2001 | 77.1 | 1.8% | -0.1% |
| September, 2001 | 77.2 | 1.8% | 0.0% |
| August, 2001 | 77.2 | 2.1% | -0.3% |
| July, 2001 | 77.4 | 2.1% | 0.1% |
| June, 2001 | 77.3 | 2.5% | 0.1% |
| May, 2001 | 77.2 | 2.8% | 0.4% |
| April, 2001 | 76.9 | 2.4% | 0.4% |
| March, 2001 | 76.6 | 2.0% | 0.0% |