Year	per 1,000 people
1960	50.975
1961	50.317
1962	50.087
1963	48.847
1964	48.192
1965	47.585
1966	47.009
1967	46.352
1968	45.526
1969	44.8
1970	44.503
1971	44.151
1972	43.807
1973	43.259
1974	42.6
1975	42.262
1976	41.566
1977	40.869
1978	40.169
1979	39.642
1980	39.385
1981	39.086
1982	38.541
1983	37.363
1984	36.064
1985	34.891
1986	33.803
1987	32.446
1988	31.065
1989	29.823
1990	29.227
1991	29.092
1992	28.367
1993	27.209
1994	26.39
1995	25.655
1996	25.115
1997	24.649
1998	24.041
1999	23.176
2000	22.74
2001	22.249
2002	21.984
2003	21.749
2004	21.542
2005	21.398
2006	21.347
2007	21.271
2008	21.23
2009	21.411
2010	21.402
2011	21.507
2012	21.304
2013	21.141
2014	20.617
2015	20.307
2016	19.483
2017	19.298
2018	18.813
2019	18.337
2020	17.889
2021	17.545
2022	17.161