Year	Per 100 People
1965	0.49602
1970	0.84026
1975	2.48364
1976	2.80048
1977	3.616
1978	3.86675
1979	4.37432
1980	5.27951
1981	5.20075
1982	5.92067
1983	6.54777
1984	8.05079
1985	8.43834
1986	9.59945
1987	9.71234
1988	10.31719
1989	10.84982
1990	12.28902
1991	13.07552
1992	13.84641
1993	14.71922
1994	16.04165
1995	17.0932
1996	20.22787
1997	22.74309
1998	23.67783
1999	24.52811
2000	25.41065
2001	25.73304
2002	25.23544
2003	24.66651
2004	24.31073
2005	24.11881
2006	23.06405
2007	25.16809
2008	24.6146
2009	28.64644
2010	24.11794
2011	30.39397
2012	22.69925
2013	23.4485
2014	22.74219
2015	22.76568
2016	22.11232
2017	20.74374