Year	Per 100 People
1960	4.38741
1965	6.3536
1970	10.92869
1975	16.27307
1976	18.03679
1977	20.00971
1978	22.01953
1979	24.11196
1980	26.09378
1981	27.70636
1982	28.95842
1983	30.06244
1984	31.42759
1985	32.67195
1986	33.64612
1987	34.60049
1988	35.5096
1989	36.64813
1990	40.30293
1991	42.17929
1992	44.25052
1993	45.95127
1994	47.94205
1995	51.69829
1996	54.15938
1997	55.46021
1998	57.09256
1999	59.16672
2000	61.62889
2001	64.18036
2002	65.76249
2003	66.39164
2004	66.7265
2005	67.08727
2006	66.71543
2007	65.27796
2008	61.99854
2009	66.32445
2010	65.39359
2011	63.50855
2012	61.80132
2013	59.9273
2014	57.7018
2015	55.50266
2016	55.30145
2017	54.07102