| Period | Index | Previous Year | Previous Month |
|---|---|---|---|
| June, 1999 | 74.5 | 0.5% | 0.1% |
| May, 1999 | 74.4 | 0.5% | 0.0% |
| April, 1999 | 74.4 | 0.7% | 0.5% |
| March, 1999 | 74.0 | 0.3% | 0.0% |
| February, 1999 | 74.0 | 0.1% | 0.1% |
| January, 1999 | 73.9 | 0.1% | -0.1% |
| December, 1998 | 74.0 | 0.3% | 0.1% |
| November, 1998 | 73.9 | 0.4% | 0.0% |
| October, 1998 | 73.9 | 0.4% | -0.1% |
| September, 1998 | 74.0 | 0.4% | -0.3% |