Year	Per 100 People
1975	8.43857
1976	9.07075
1977	11.08118
1978	11.68969
1979	12.97446
1980	13.56451
1981	15.49998
1982	16.07888
1983	16.6509
1984	17.20488
1985	17.73519
1986	18.22878
1987	18.69511
1988	19.05137
1989	19.74559
1990	20.44412
1991	21.4445
1992	22.31508
1993	23.50176
1994	25.9341
1995	28.72792
1996	30.95153
1997	33.24123
1998	35.45035
1999	36.72105
2000	37.3677
2001	36.37863
2002	34.35228
2003	33.57834
2004	32.56398
2005	32.60765
2006	33.4924
2007	36.86499
2008	37.1818
2009	36.88785
2010	36.19926
2011	35.52323
2012	33.82901
2013	32.27171
2014	30.89363
2015	29.46862
2016	28.2366
2017	27.65029