Year	Per 100 People
1965	0.3293
1970	0.35902
1975	0.35219
1976	0.38457
1977	0.38648
1978	0.39952
1979	0.43047
1980	0.46154
1981	0.46879
1982	0.45936
1983	0.47507
1984	0.47149
1985	0.47745
1986	0.47088
1987	0.48485
1988	0.6494
1989	0.66391
1990	0.64955
1991	0.6741
1992	0.69518
1993	0.72407
1994	0.75493
1995	0.76485
1996	0.7641
1997	0.74262
1998	0.72168
1999	0.70145
2000	0.68202
2001	0.66349
2002	0.6457
2003	0.19986
2004	0.38331
2005	0.42781
2006	0.35796
2007	0.3371
2008	0.2199
2009	0.2727
2010	0.30547
2011	0.31467
2012	0.32227
2013	0.32999
2014	0.33463
2015	0.3403
2016	0.33165