Year	per 100 people
1975	3.544296619
1976	3.819679253
1977	4.414826951
1978	4.670913225
1979	5.081617123
1980	5.326598841
1981	6.025470126
1982	6.242841668
1983	6.447736522
1984	6.639886774
1985	6.82035193
1986	7.133557023
1987	7.430581892
1988	7.698503998
1989	8.02844082
1990	8.346980197
1991	8.226691891
1992	8.115564168
1993	8.015263872
1994	8.121282863
1995	8.106290395
1996	8.114979529
1997	8.228636228
1998	8.459045881
1999	9.010732647
2000	9.782259265
2001	10.44189324
2002	11.06051067
2003	11.12420444
2004	11.84409275
2005	12.6405966
2006	13.4306568
2007	14.11626472
2008	14.56160297
2009	15.36356527
2010	16.30997135
2011	17.99202352
2012	18.17500592
2013	18.28341591
2014	18.43020033
2015	18.20885732
2016	17.04281008
2017	16.76328023
2018	16.56147113
2019	16.35152339
2020	16.06899245
2021	15.9439666
2022	15.84416176