Year	per 100 people
1970	3.54577957848921
1971	3.453552845913043
1972	3.461905808828886
1973	3.469595652198685
1974	3.4773128868425403
1975	4.236677602202536
1976	4.629190779973831
1981	5.448334246511572
1982	5.958098797951312
1983	6.227197664089248
1984	6.868132337693457
1985	7.436392222863822
1986	8.278810287825333
1987	8.879599924164397
1988	9.75113127914171
1989	10.782426185092861
1990	12.280633020025427
1991	13.191248203981628
1992	14.393123374890617
1993	15.648322824271167
1994	16.350984121286817
1995	17.250483948337397
1996	18.27012460986246
1997	19.845486877221695
1998	20.884785083111385
1999	21.92120027594811
2000	22.963363980678096
2001	23.907487932319786
2002	24.081357774869836
2003	24.264067421319908
2004	24.379446009687815
2005	23.856943589616495
2006	23.941461779411412
2007	24.23901888903106
2008	24.43119030645013
2009	24.32131682551088
2010	24.15989449847037
2011	24.173918965170376
2012	24.07108177850599
2013	23.995798800797253
2014	22.694375798700975
2015	23.136156854762408
2016	21.71434565829573
2017	20.621636169619087
2018	20.53225087521297
2019	18.191752257978113
2020	18.264951464742634
2021	18.32422359462757