Year	per 1,000 people
1960	26.335
1961	26.049
1962	25.817
1963	25.551
1964	25.271
1965	25.412
1966	25.278
1967	24.97
1968	24.596
1969	24.308
1970	24.061
1971	24.447
1972	23.59
1973	23.458
1974	23.463
1975	23.374
1976	23.139
1977	22.922
1978	22.66
1979	22.356
1980	22.103
1981	21.89
1982	21.378
1983	21.06
1984	20.987
1985	20.723
1986	20.423
1987	21.846
1988	20.154
1989	20.086
1990	20.737
1991	20.029
1992	19.852
1993	19.718
1994	19.537
1995	19.195
1996	18.909
1997	18.692
1998	18.548
1999	18.305
2000	18.088
2001	17.695
2002	17.441
2003	17.118
2004	16.982
2005	16.827
2006	16.707
2007	16.301
2008	16.007
2009	15.765
2010	15.421
2011	15.056
2012	14.634
2013	14.373
2014	14.022
2015	13.693
2016	13.291
2017	13.043
2018	12.671
2019	12.369
2020	12.486
2021	12.504
2022	12.157