Year Per 100,000 People 1975 18.4013 1976 17.9523 1977 18.505 1978 14.048 1979 17.7307 1980 17.9877 1981 15.7682 1982 16.2109 1983 18.2428 1984 17.8494 1985 15.3216 1986 14.946 1987 11.589 1993 9.5464 1994 11.7497 1995 11.6491 1996 13.5592 1997 8.1916 1998 8.2395 1999 8.623 2000 11.0021 2001 6.6631 2002 7.9715 2007 6.1845 2008 5.3106 2009 4.514 2010 3.4079 2011 3.4319 2012 4.3491 2013 3.1772 2014 2.9499