| 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 |
Male | 121.3 | 121.3 | 121.2 | 121 | 120.9 | 120.9 | 120.8 | 120.8 | 120.9 | 121 |
| (112.3 - 130.3) | (113.1 - 129.2) | (113.8 - 128.2) | (114.4 - 127.4) | (114.9 - 126.7) | (115.3 - 126.1) | (115.7 - 125.7) | (116.1 - 125.3) | (116.5 - 125.2) | (116.8 - 125.1) |