Year	per 1,000 people
1960	30.49
1961	29.199
1962	27.925
1963	26.782
1964	25.621
1965	24.507
1966	23.422
1967	22.331
1968	21.249
1969	20.244
1970	19.385
1971	18.404
1972	17.776
1973	16.864
1974	16.007
1975	15.205
1976	14.092
1977	13.4
1978	12.446
1979	11.538
1980	10.702
1981	9.924
1982	9.1
1983	8.314
1984	7.627
1985	6.982
1986	6.358
1987	5.755
1988	5.279
1989	4.894
1990	4.541
1991	4.292
1992	4.054
1993	3.836
1994	3.73
1995	3.549
1996	3.494
1997	3.435
1998	3.285
1999	3.234
2000	3.156
2001	3.063
2002	3.041
2003	2.959
2004	2.896
2005	2.914
2006	2.928
2007	2.976
2008	2.973
2009	2.991
2010	2.585
2011	2.457
2012	2.323
2013	2.278
2014	2.243
2015	2.205
2016	2.154
2017	2.155
2018	2.172
2019	2.205
2020	3.025
2021	3.796
2022	3.279