Year Per 100,000 People 1975 1.6077 1976 1.7567 1977 1.5344 1978 1.717 1979 1.9315 1980 1.8995 1981 2.0373 1982 1.8534 1983 2.1358 1984 1.6014 1985 2.3237 1986 1.9396 1987 1.4568 1988 1.4035 1989 2.6361 1990 1.9023 1991 1.2803 1992 1.2415 1993 2.4211 1994 2.3217 1995 1.4605 1996 1.0427 1997 0.5413 1998 0.5022 1999 2.1433 2000 3.123 2001 5.7982 2002 7.765 2003 5.0563 2004 3.5741 2005 3.2351 2006 3.1907 2007 2.069 2008 2.0303 2009 2.0823 2010 2.1587 2011 2.2113 2012 1.8024 2013 1.708 2014 1.6464 2015 1.704