| | | 1960 1963 | | | | | 1980 1000 | | | | | 1985 | 10 | | | 851.6 | | 581.5 | 55.1 79.3 | 135.7 | 135 | | 1990 768 | 229 | 110 | 113 45 | 19 80 | 2 57 | | | 1960 8 | | 20% | 1961 | | | | | | | 1962 | | 1962 1961 340 | 19.5% | 1981 | | | 32 | | 1983 147 | 22 | 31 | 1988 1989 | 1 636 860 | 1 087 241 | | | 1990 6 997 | 99.96% | 969 | 96 .9% |