Year	per 1,000 people
1990	5.445
1991	5.079
1992	5.364
1993	5.692
1994	5.702
1995	5.582
1996	5.65
1997	5.557
1998	5.693
1999	5.596
2000	5.488
2001	5.725
2002	5.892
2003	5.978
2004	5.98
2005	6.154
2006	6.402
2007	6.118
2008	6.329
2009	6.393
2010	6.392
2011	6.396
2012	6.496
2013	6.596
2014	6.583
2015	6.64
2016	6.601
2017	6.763
2018	6.867
2019	6.858
2020	6.818
2021	6.604