Year	per 1,000 people
1960	17.229
1961	16.782
1962	16.549
1963	16.062
1964	15.781
1965	15.501
1966	15.166
1967	14.819
1968	14.456
1969	14.096
1970	18.756
1971	13.277
1972	12.93
1973	12.784
1974	12.524
1975	12.257
1976	12.013
1977	11.77
1978	11.509
1979	11.262
1980	11.033
1981	10.678
1982	10.397
1983	10.146
1984	9.837
1985	9.329
1986	8.876
1987	8.426
1988	7.996
1989	7.607
1990	7.243
1991	7.068
1992	6.753
1993	6.532
1994	6.323
1995	6.294
1996	6.217
1997	6.144
1998	6.056
1999	5.904
2000	5.782
2001	5.72
2002	5.707
2003	5.747
2004	5.838
2005	5.98
2006	6.177
2007	6.416
2008	6.605
2009	6.801
2010	6.895
2011	6.864
2012	6.791
2013	6.681
2014	6.612
2015	6.438
2016	6.318
2017	6.173
2018	6.103
2019	6.006
2020	7.327
2021	7.988
2022	7.505