Year Deaths per 100,000 1967 8.9584 1968 26.8415 1969 28.7296 1970 27.8557 1971 31.8754 1972 5.8236 1973 3.5338 1974 5.2114 1975 30.3031 1976 14.3196 1978 6.3059 1980 7.0086 1983 18.7717