Year	per 1,000 people
1980	12.0114002227783
1981	12.1184997558594
1982	12.1033000946045
1983	11.9364995956421
1984	11.9771003723145
1985	12.0304002761841
1986	12.0309000015259
1987	12.0642004013062
1988	11.9474000930786
1989	11.9720001220703
1990	11.9772996902
1991	12.0579996109
1992	11.9320001602
1993	10.7455997467
1994	9.6052999496
1995	8.6400003433
1996	8.4099998474
1997	8.6000003815
1998	8.3000001907
1999	7.4699997902
2000	7.04
2001	6.15
2002	5.53
2003	5.31
2004	5.14
2005	5.12
2006	5.09
2007	5.06
2008	5.01
2009	4.83
2010	4.76
2011	4.7
2012	4.64
2013	4.51
2014	4.41