Year	per 1,000 people
1960	35.194
1961	32.654
1962	34.269
1963	36.33
1964	35.561
1965	35.481
1966	36.62
1967	39.24
1968	36.953
1969	36.044
1970	35.036
1971	33.127
1972	33.352
1973	27.959
1974	25.408
1975	23.908
1976	21.641
1977	20.637
1978	20.449
1979	20.664
1980	20.622
1981	20.781
1982	20.536
1983	20.371
1984	20.364
1985	20.425
1986	20.495
1987	20.216
1988	20.255
1989	20.116
1990	20.515
1991	20.833
1992	20.834
1993	20.804
1994	20.661
1995	20.475
1996	20.004
1997	19.188
1998	18.718
1999	18.138
2000	17.44
2001	16.964
2002	16.067
2003	15.283
2004	15.051
2005	14.534
2006	14.207
2007	13.971
2008	13.983
2009	13.723
2010	12.706
2011	12.728
2012	12.957
2013	13.192
2014	13.45
2015	13.536
2016	13.525
2017	13.514
2018	13.488
2019	13.487
2020	13.333
2021	13.24
2022	13.058