Year	per 1,000 people
1960	38.158
1961	37.109
1962	35.432
1963	33.734
1964	31.603
1965	29.823
1966	28.386
1967	27.11
1968	25.648
1969	24.719
1970	24.842
1971	25.114
1972	25.485
1973	25.317
1974	25.194
1975	25.119
1976	25.101
1977	25.122
1978	24.919
1979	24
1980	23.9
1981	24.4
1982	24.4
1983	24.5
1984	25.5
1985	25.1
1986	25.6
1987	25.7
1988	24.8
1989	23
1990	22.18
1991	21.53
1992	20.54
1993	19.26
1994	18.93
1995	17.46
1996	16.25
1997	15.15
1998	14.75
1999	14.57
2000	14.92
2001	14.91
2002	15.29
2003	16.63
2004	18.19
2005	18.42
2006	19.71
2007	20.79
2008	22.75
2009	22.14
2010	22.53
2011	22.51
2012	22.7
2013	22.73
2014	23.1
2015	22.71
2016	22.52
2017	21.64
2018	21.77
2019	21.73
2020	22.76
2021	23.5
2022	20.57