Year	Per 100 People
1960	0.04697
1965	0.12853
1970	0.12584
1975	0.1666
1976	0.16529
1977	0.16675
1978	0.20831
1979	0.24165
1980	0.26303
1981	0.33267
1982	0.35358
1983	0.36868
1984	0.37491
1985	0.4998
1986	0.59546
1987	0.67488
1988	0.73897
1989	0.77588
1990	0.77042
1991	0.75099
1992	0.68261
1993	0.85988
1994	0.90702
1995	1.01013
1996	0.89382
1997	1.12679
1998	1.14673
1999	1.16724
2000	1.18799
2001	1.13375
2002	1.50359
2003	1.82999
2004	1.9253
2005	2.46027
2006	2.70321
2007	2.40036
2008	2.05957
2009	1.98097
2010	1.89223
2011	1.86899
2012	2.42922
2013	2.37772
2014	2.31682
2015	1.86559
2016	1.86757
2017	0.47628