Year	Per 100 People
1960	2.19703
1965	4.91095
1970	10.24274
1975	18.72381
1976	19.79231
1977	20.57984
1978	21.56391
1979	22.64357
1980	23.56536
1981	24.68377
1982	25.85037
1983	27.50938
1984	29.49766
1985	31.24691
1986	32.84294
1987	34.42311
1988	35.76629
1989	37.23298
1990	38.52895
1991	40.51567
1992	43.0233
1993	44.88435
1994	46.57267
1995	47.85052
1996	48.97378
1997	49.54652
1998	50.18426
1999	50.5933
2000	50.79172
2001	50.1393
2002	56.11054
2003	56.03588
2004	56.36232
2005	55.84941
2006	54.41909
2007	48.05794
2008	46.00576
2009	52.43316
2010	51.52974
2011	50.29373
2012	47.99675
2013	47.63243
2014	47.2196
2015	46.89476
2016	46.50467
2017	46.38513