Year	per 1,000 people
1960	31.893
1961	32.254
1962	32.634
1963	32.88
1964	33.144
1965	33.48
1966	33.841
1967	34.095
1968	34.421
1969	34.746
1970	35.13
1971	35.574
1972	36.018
1973	36.292
1974	36.499
1975	36.873
1976	37.27
1977	37.66
1978	38.026
1979	38.205
1980	38.527
1981	38.884
1982	38.933
1983	39.025
1984	38.902
1985	38.8
1986	38.686
1987	38.675
1988	38.495
1989	38.056
1990	37.635
1991	37.222
1992	36.839
1993	36.378
1994	35.578
1995	34.82
1996	34.248
1997	33.992
1998	33.777
1999	33.502
2000	33.471
2001	33.279
2002	33.101
2003	32.884
2004	32.771
2005	32.722
2006	32.68
2007	32.685
2008	32.675
2009	32.96
2010	33.177
2011	33.223
2012	32.718
2013	32.182
2014	31.622
2015	31.036
2016	30.362
2017	29.713
2018	29.004
2019	28.354
2020	27.695
2021	27.142
2022	26.803