Year Per 100,000 People 1967 2.3651 1973 2.2292 1981 1.8872 1984 2.0278 1988 2.2001 1992 1.4554 1993 1.592 1994 1.2698 1999 3.6134 2000 2.4566 2001 1.317 2002 1.1204 2004 3.1372 2008 2.3954 2010 1.1009 2013 4.0733 2014 0.9388 2015 2.3543