Year	Per 100 People
1965	2.69556
1970	7.78547
1975	12.56147
1976	13.13529
1977	14.38162
1978	16.43003
1979	18.17738
1980	19.48041
1981	23.85067
1982	26.5506
1983	29.36355
1984	30.44069
1985	31.39013
1986	33.51033
1987	34.84677
1988	35.51374
1989	37.0405
1990	39.4467
1991	41.31919
1992	42.96631
1993	43.88972
1994	45.25105
1995	46.66406
1996	48.11063
1997	49.71474
1998	51.36416
1999	52.2091
2000	52.32451
2001	51.23922
2002	49.85367
2003	48.05963
2004	45.95771
2005	44.94148
2006	45.07538
2007	44.93427
2008	44.5678
2009	44.85094
2010	45.20006
2011	45.85139
2012	46.48737
2013	47.74471
2014	48.26502
2015	49.79875
2016	50.06923
2017	49.9071