Year	Per 100,000 People
1981	20.1749
1982	20.8598
1985	20.7965
1986	18.7913
1987	17.0926
1988	16.9752
1989	17.4288
1990	15.1471
1991	16.8703
1992	15.9717
1993	16.676
1994	18.2044
1995	18.4349
1996	17.6272
1997	17.0571
1998	15.5728
1999	15.4628
2000	14.1991
2001	16.2311
2002	15.1019
2003	15.892
2004	15.156
2005	15.5386
2006	15.9246
2007	13.8963
2008	15.3293
2009	15.9089
2010	16.349
2011	12.2742
2012	13.9102
2013	13.7455
2014	13.775
2015	13.2975
2016	13.0128