Year	per 1,000 people
1999	0.282
2000	0.286
2001	0.281
2002	0.301
2003	0.3
2004	0.33
2005	0.335
2006	0.344
2007	0.369
2008	0.396
2009	0.403
2010	0.412
2011	0.4
2012	0.412
2013	0.424
2014	0.422
2015	0.45
2016	0.483
2017	0.482
2018	0.482
2019	0.474
2020	0.486
2021	0.568