Year	per 1,000 people
1994	11.58
1995	12
1996	12.43
1997	12.95
1998	13.21
1999	13.69
2000	14.08
2001	14.9
2002	15.43
2003	14.9
2004	12.45
2005	12.33
2006	12.66
2007	13.76
2008	13.67
2009	13.03
2010	13.55
2011	13.5
2012	13.08
2013	12.65
2014	12.27
2015	12.44
2016	11.66
2017	14.48
2018	12.97
2019	15.6
2020	18.43
2021	14.9