Year	per 1,000 people
1960	8.570157323874787
1970	8.670518401297274
1980	7.556455853411385
1985	7.987414493847248
1990	5.564884050661577
1991	5.801668580851311
1992	5.530266430995173
1993	6.403131742124938
1994	6.539089411823235
1995	6.318487645377239
1996	6.009353763840436
1997	6.077312454892802
1998	5.9617867395750475
1999	5.851746192163456
2000	5.540190636587646
2001	5.481366494991092
2002	5.43849731106819
2003	5.241964545849868
2004	5.179313835383209
2005	5.245882502277969
2006	5.05043986603821
2007	5.035158896702822
2008	5.116771446550225
2009	5.053856906828526
2010	4.884833681393734
2011	4.8462170590141955
2012	4.833073274494516
2013	4.7967734009206975
2014	4.7858708727245105
2015	4.728469300163041
2016	4.708396378154649
2017	4.727050295227861
2018	5.056524413187539