Year	per 1,000 people
2000	5.425
2001	5.504
2002	5.699
2003	5.603
2004	5.7
2005	5.85
2006	6.053
2007	6.112
2008	6.02
2009	6.178
2010	5.75
2011	5.842
2012	5.963
2013	6.156
2016	6.092
2017	7.372