Year	per 100 people
1975	4.749408348
1976	5.871434456
1977	7.049476488
1978	8.951705844
1979	10.60991665
1980	11.89204061
1981	12.96069734
1982	13.96559165
1983	14.37015382
1984	14.43105758
1985	15.00881456
1986	15.02541707
1987	15.72425819
1988	17.58902072
1989	19.68535137
1990	20.86334191
1991	21.78384302
1992	23.22756826
1993	24.8823812
1994	26.41123492
1995	27.62256839
1996	28.68830253
1997	30.40983672
1998	31.33112871
1999	31.48210383
2000	31.14483321
2001	30.48261854
2002	30.09791246
2003	29.78300711
2004	29.74287933
2005	28.89189494
2006	26.73393137
2007	23.59291179
2008	22.83678873
2009	19.77002854
2010	17.44311418
2011	21.28807416
2012	22.70620672
2013	23.83513745
2014	23.80089887
2015	25.32994935
2016	25.41407784
2017	25.59286772
2018	25.61650385
2019	25.64795889
2020	25.63574796
2021	23.95032046
2022	24.21430998