Year	Per 100 People
1960	4.33301
1965	5.26992
1970	5.69435
1975	6.60737
1976	6.79236
1977	7.07009
1978	7.09327
1979	7.32038
1980	7.54516
1981	7.71541
1982	7.88361
1983	8.32975
1984	8.67607
1985	9.56301
1986	10.1261
1987	10.2291
1988	11.25379
1989	12.16678
1990	13.35706
1991	14.41296
1992	15.59843
1993	16.68798
1994	18.18302
1995	19.28787
1996	20.59805
1997	23.26768
1998	25.01417
1999	27.10072
2000	27.97568
2001	28.5794
2002	28.44344
2003	28.21072
2004	29.98412
2005	30.2501
2006	29.62637
2007	28.90092
2008	28.62836
2009	28.35934
2010	28.51419
2011	28.49871
2012	29.76212
2013	30.76419
2014	31.66803
2015	32.24287
2016	32.33345
2017	32.8915