Year	per 1,000 people
1960	40.333
1961	38.587
1962	37.316
1963	37.394
1964	37.815
1965	37.644
1966	37.559
1967	37.138
1968	36.563
1969	35.922
1970	35.252
1971	34.625
1972	33.838
1973	32.827
1974	31.853
1975	30.962
1976	29.931
1977	29.985
1978	29.702
1979	29.535
1980	29.544
1981	29.41
1982	29.221
1983	29.065
1984	28.814
1985	28.496
1986	28.054
1987	27.62
1988	27.097
1989	26.599
1990	25.322
1991	25.695
1992	26.012
1993	25.951
1994	25.606
1995	24.994
1996	23.205
1997	22.992
1998	22.412
1999	21.139
2000	19.12
2001	18.808
2002	18.609
2003	18.519
2004	18.534
2005	18.016
2006	18.075
2007	16.673
2008	16.548
2009	16.354
2010	15.329
2011	15.264
2012	15.037
2013	14.54
2014	13.96
2015	14.123
2016	13.47
2017	12.748
2018	12.22
2019	11.994
2020	11.813
2021	11.712
2022	11.531