Year	Per 100 People
1975	2.51932
1976	2.73126
1977	3.1332
1978	3.31213
1979	3.54453
1980	3.6387
1981	4.03335
1982	4.28825
1983	4.5293
1984	4.81314
1985	5.13577
1986	5.4402
1987	5.78038
1988	6.15346
1989	6.75705
1990	6.85569
1991	6.96114
1992	7.12992
1993	7.03685
1994	6.94912
1995	6.75407
1996	6.57241
1997	6.49786
1998	6.37307
1999	6.53081
2000	6.66043
2001	6.60207
2002	6.58959
2003	6.6474
2004	6.69105
2005	6.76481
2006	6.84958
2007	6.67639
2008	6.67331
2009	6.59411
2010	6.6145
2011	6.63176
2012	6.70272
2013	6.66228
2014	8.22211
2015	9.09288
2016	10.853
2017	10.79367