Year	Per 100 People
1960	0.13559
1965	0.16969
1970	0.25756
1975	0.5173
1976	0.54625
1977	0.58763
1978	0.65165
1979	0.71533
1980	0.77239
1981	0.79077
1982	0.88155
1983	0.92302
1984	1.01646
1985	1.20384
1986	1.50748
1987	1.67077
1988	1.83178
1989	2.07548
1990	2.34086
1991	2.71255
1992	3.09491
1993	3.79427
1994	4.67022
1995	5.8529
1996	6.91614
1997	7.93034
1998	8.1782
1999	8.37091
2000	8.88065
2001	9.51969
2002	10.23365
2003	10.27405
2004	10.47905
2005	10.75218
2006	10.74322
2007	10.61105
2008	11.11168
2009	10.77263
2010	10.17002
2011	9.86375
2012	9.39951
2013	8.88718
2014	8.31667
2015	7.73257
2016	6.83381
2017	4.2151