Year	Per 100 People
1975	3.32624
1976	3.68167
1977	3.87529
1978	4.04169
1979	4.20409
1980	4.42778
1981	4.6278
1982	4.93412
1983	5.2592
1984	5.50047
1985	5.75912
1986	6.0091
1987	6.33033
1988	6.84525
1989	7.43896
1990	8.06187
1991	8.61676
1992	9.04298
1993	12.06988
1994	12.25221
1995	12.24163
1996	12.11451
1997	11.58618
1998	11.56608
1999	11.60371
2000	12.18159
2001	12.89649
2002	13.78199
2003	14.62941
2004	16.5736
2005	17.42436
2006	18.66309
2007	20.43323
2008	21.61366
2009	23.82885
2010	24.74301
2011	25.62445
2012	25.7748
2013	25.52411
2014	24.89396
2015	23.36835
2016	21.85433
2017	20.30981