| Period | Index | Previous Year | Previous Month |
|---|---|---|---|
| October, 1997 | 73.6 | 2.1% | -0.1% |
| September, 1997 | 73.7 | 2.2% | -0.1% |
| August, 1997 | 73.8 | 2.4% | 0.0% |
| July, 1997 | 73.8 | 2.4% | 1.0% |
| June, 1997 | 73.1 | 1.5% | 0.0% |
| May, 1997 | 73.1 | 1.7% | 0.3% |
| April, 1997 | 72.9 | 1.5% | -0.1% |
| March, 1997 | 73.0 | 1.7% | 0.0% |
| February, 1997 | 73.0 | 1.7% | 0.1% |
| January, 1997 | 72.9 | 2.1% | 0.8% |