Schedule
| Tax year | Increase |
|---|---|
| 1978–79 | 233.4 |
| 1979–80 | 194.0 |
| 1980–81 | 145.8 |
| 1981–82 | 106.1 |
| 1982–83 | 87.0 |
| 1983–84 | 73.4 |
| 1984–85 | 60.5 |
| 1985–86 | 50.6 |
| 1986–87 | 38.3 |
| 1987–88 | 28.9 |
| 1988–89 | 18.4 |
| 1989–90 | 7.3 |
| Tax year | Increase |
|---|---|
| 1978–79 | 233.4 |
| 1979–80 | 194.0 |
| 1980–81 | 145.8 |
| 1981–82 | 106.1 |
| 1982–83 | 87.0 |
| 1983–84 | 73.4 |
| 1984–85 | 60.5 |
| 1985–86 | 50.6 |
| 1986–87 | 38.3 |
| 1987–88 | 28.9 |
| 1988–89 | 18.4 |
| 1989–90 | 7.3 |