Year	Per 100 People
1960	3.72354
1965	3.78592
1970	4.0106
1975	4.41013
1976	4.56803
1977	4.74684
1978	4.94025
1979	5.19694
1980	5.48378
1981	5.85797
1982	6.18131
1983	6.44628
1984	6.53529
1985	6.81222
1986	7.34314
1987	7.57471
1988	7.9677
1989	8.38394
1990	8.82581
1991	8.93595
1992	8.78584
1993	8.91771
1994	9.15928
1995	9.50904
1996	9.92724
1997	10.6399
1998	11.4383
1999	12.19038
2000	10.85048
2001	10.61649
2002	10.45588
2003	10.30458
2004	10.16221
2005	10.02856
2006	9.90386
2007	9.78608
2008	9.67029
2009	9.55056
2010	9.42334
2011	9.28755
2012	9.14559
2013	7.20805
2014	6.6883
2015	7.47145
2016	8.07429
2017	6.39867