Year	Per 100 People
1960	0.75017
1965	1.25816
1970	2.16349
1975	3.86191
1976	4.22032
1977	4.81038
1978	5.43211
1979	5.74203
1980	6.58768
1981	6.95155
1982	7.47903
1983	7.52356
1984	7.61187
1985	7.68909
1986	7.66537
1987	8.37139
1988	8.7117
1989	9.00974
1990	9.09023
1991	9.60002
1992	10.032
1993	10.89849
1994	12.55222
1995	13.64139
1996	14.61555
1997	18.59047
1998	19.70644
1999	20.85359
2000	22.8951
2001	23.64268
2002	25.546
2003	28.09576
2004	32.07979
2005	32.68726
2006	30.85562
2007	32.88031
2008	32.45807
2009	33.41161
2010	23.32934
2011	22.42636
2012	21.38081
2013	20.57749
2014	18.5224
2015	17.8773
2016	17.49595
2017	17.18687