Year	per 1,000 people
2000	6.59
2001	6.571
2002	6.56
2003	6.577
2004	6.594
2005	6.638
2006	6.652
2007	6.654
2008	6.622
2009	7.562
2010	7.49
2011	7.488
2012	7.521
2013	7.567
2014	6.656