Year	per 1,000 people
1960	29.739
1961	29.729
1962	29.547
1963	29.669
1964	29.631
1965	29.611
1966	29.5
1967	29.483
1968	29.366
1969	29.087
1970	28.662
1971	28.117
1972	27.436
1973	26.768
1974	26.04
1975	25.166
1976	24.29
1977	23.441
1978	22.559
1979	21.895
1980	21.403
1981	21.025
1982	20.861
1983	20.875
1984	21.219
1985	21.653
1986	22.032
1987	22.275
1988	22.892
1989	22.492
1990	22.087
1991	21.711
1992	21.289
1993	21.012
1994	20.623
1995	20.333
1996	20.459
1997	20.657
1998	20.823
1999	20.175
2000	19.559
2001	18.588
2002	17.66
2003	16.573
2004	15.541
2005	14.633
2006	13.951
2007	13.496
2008	12.96
2009	12.183
2010	11.412
2011	10.608
2012	9.783
2013	9.081
2014	8.376
2015	8.005
2016	7.541
2017	7.149
2018	6.955
2019	6.611
2020	6.706
2021	6.983
2022	6.934