Year	Per 100 People
1965	0.3815
1970	0.78232
1975	1.15973
1976	1.29727
1977	1.43188
1978	1.45245
1979	1.49056
1980	1.50267
1981	1.56142
1982	1.68446
1983	1.67848
1984	1.77537
1985	1.83791
1986	1.82648
1987	1.94129
1988	2.0643
1989	2.31138
1990	2.3781
1991	2.43988
1992	3.05442
1993	3.16958
1994	4.25126
1995	5.07523
1996	5.73454
1997	6.29234
1998	6.6911
1999	8.50342
2000	10.65652
2001	11.00378
2002	11.24015
2003	12.60388
2004	14.79502
2005	16.11314
2006	17.11848
2007	17.75438
2008	17.6289
2009	17.90905
2010	16.2362
2011	16.6287
2012	17.02231
2013	15.36665
2014	15.18459
2015	14.95872
2016	14.71108
2017	10.62425