Year	per 1,000 people
1960	17.377
1961	17.175
1962	17.036
1963	16.984
1964	16.893
1965	16.859
1966	16.707
1967	16.556
1968	16.262
1969	15.935
1970	15.61
1971	15.352
1972	15.026
1973	14.731
1974	14.571
1975	14.211
1976	13.923
1977	13.594
1978	13.181
1979	12.738
1980	12.277
1981	11.744
1982	11.33
1983	10.995
1984	10.659
1985	10.358
1986	10.136
1987	10.09
1988	10.001
1989	9.997
1990	10.013
1991	10.081
1992	10.344
1993	10.59
1994	10.558
1995	11.183
1996	11.947
1997	12.829
1998	13.878
1999	14.944
2000	16.083
2001	17.289
2002	18.368
2003	19.339
2004	20.162
2005	20.605
2006	20.884
2007	20.662
2008	20.417
2009	19.933
2010	18.644
2011	17.828
2012	17.019
2013	16.222
2014	15.519
2015	14.825
2016	14.126
2017	13.651
2018	13.259
2019	13.014
2020	12.858
2021	14.186
2022	14.069