Year Per 100,000 People 1961 3.0766 1962 9.2597 1963 2.8527 1964 2.9271 1966 6.0372 1968 3.0601 1969 3.4091 1970 2.8215 1973 8.7777 1977 3.1756 1978 6.1178 1979 3.9833 1980 3.4702 1981 4.1132 1983 3.4348 1986 11.6849 1987 7.29 1988 3.0975 1989 11.5756 1990 15.7115 1991 14.8266 1992 16.3793 1993 13.5071 1994 17.4967 1995 9.0396