Year	Per 100 People
1975	2.06433
1976	2.29381
1977	2.50941
1978	2.71121
1979	2.89899
1980	3.07266
1981	3.48191
1982	3.62296
1983	3.75125
1984	3.86581
1985	3.96669
1986	4.05352
1987	4.12886
1988	4.31904
1989	4.46619
1990	4.54225
1991	4.76789
1992	4.85368
1993	4.73802
1994	4.72053
1995	4.55747
1996	4.21614
1997	3.80164
1998	3.67545
1999	3.47513
2000	3.51526
2001	3.58537
2002	3.68504
2003	3.72809
2004	4.07279
2005	4.08802
2007	4.09276
2008	3.92545
2009	4.64697
2010	4.81171
2011	4.86185
2012	4.91553
2013	5.19699
2014	5.2698
2015	5.34587
2016	5.35779