Year	per 100 people
1975	8.426705916
1976	9.056992869
1977	11.05644314
1978	11.65301436
1979	12.93699818
1980	13.54111726
1981	15.48020956
1982	16.04949665
1983	16.60341871
1984	17.14899309
1985	17.69584384
1986	18.22889371
1987	18.73740878
1988	19.10763497
1989	19.76981557
1990	20.37341931
1991	21.20600884
1992	22.03156232
1993	23.24592073
1994	25.60663321
1995	28.33735437
1996	30.58619752
1997	32.96491709
1998	35.32984161
1999	36.72865939
2000	37.42749004
2001	36.47650028
2002	34.4392564
2003	33.63343207
2004	32.58990958
2005	32.63138702
2006	33.5567669
2007	36.9611823
2008	37.25691112
2009	36.92317722
2010	36.21466954
2011	35.55052662
2012	33.88660313
2013	32.35931902
2014	30.9837158
2015	29.48350787
2016	28.16184193
2017	27.48413911
2018	26.14608955
2019	24.44449636
2020	22.9214619
2021	22.32405936
2022	20.05517087