Year	Per 100 People
1960	2.27257
1965	3.10884
1970	5.13649
1975	9.31033
1976	11.67654
1977	14.68224
1978	17.74117
1979	20.23097
1980	22.24995
1981	23.96359
1982	25.54097
1983	26.88023
1984	28.73219
1985	29.75855
1986	30.44494
1987	31.42654
1988	32.62962
1989	33.94501
1990	34.98037
1991	35.55802
1992	36.65507
1993	37.88708
1994	39.33803
1995	41.06633
1996	43.82007
1997	46.17393
1998	47.64649
1999	49.14544
2000	49.71947
2001	48.45999
2002	46.64979
2003	44.4662
2004	42.49389
2005	41.06842
2006	40.1895
2007	39.3405
2008	38.67157
2009	38.88617
2010	39.33782
2011	38.98944
2012	37.70852
2013	36.69203
2014	36.64785
2015	36.42285
2016	35.54319
2017	34.73733