Year	Per 100 People
1960	1.85538
1965	3.53718
1970	5.43644
1975	6.5951
1976	7.25431
1977	6.51332
1978	7.92393
1979	8.89233
1980	9.73656
1981	11.20241
1982	12.31613
1983	14.40264
1984	17.12156
1985	19.33428
1986	21.88856
1987	24.8995
1988	27.46101
1989	29.70746
1990	32.08159
1991	34.33597
1992	36.32653
1993	37.98054
1994	39.46219
1995	40.60644
1996	41.95416
1997	43.33656
1998	44.56962
1999	45.82
2000	46.65505
2001	45.24042
2002	43.62047
2003	42.48935
2004	41.18495
2005	40.67748
2006	38.95007
2007	38.49882
2008	52.6057
2009	51.3582
2010	49.9205
2011	47.70601
2012	43.19898
2013	40.50447
2014	38.42874
2015	38.39485
2016	37.72335
2017	37.33125