Year	Per 100 People
1960	2.97496
1965	4.4854
1970	6.97156
1975	8.84329
1976	10.43207
1977	11.87074
1978	12.98351
1979	14.06366
1980	15.34533
1981	17.15116
1982	19.33153
1983	22.47102
1984	23.10492
1985	24.2457
1986	27.67898
1987	31.06079
1988	32.55557
1989	33.77128
1990	35.19157
1991	37.76229
1992	40.59119
1993	42.14172
1994	43.20594
1995	44.8895
1996	47.06888
1997	48.29564
1998	49.0388
1999	50.21876
2000	51.47705
2001	52.0462
2002	51.649
2003	51.6531
2004	50.99393
2005	49.68595
2006	50.9985
2007	56.15879
2008	58.50488
2009	59.62878
2010	59.51191
2011	55.50223
2012	54.59743
2013	54.65639
2014	54.12999
2015	53.83943
2016	54.58518
2017	55.77077