Year	Per 100 People
1960	1.3731
1982	6.35103
1983	6.78628
1984	10.18997
1985	13.40922
1986	16.0956
1987	18.04979
1988	20.37572
1989	23.67971
1990	27.08506
1991	30.15711
1992	33.32156
1993	36.31452
1994	38.44402
1995	39.74036
1996	41.03113
1997	42.23262
1998	42.4298
1999	42.62859
2000	41.31908
2001	40.27794
2002	39.23091
2003	37.94896
2004	36.89191
2005	36.13838
2006	35.81144
2007	35.33245
2008	34.20252
2009	32.45417
2010	31.35637
2011	30.26906
2012	28.89316
2013	27.51002
2014	26.08559
2015	24.31815
2016	23.19628