Year	per 1,000 people
2000	1.693
2002	1.797
2008	2.633
2010	3.141
2011	3.326
2012	3.738
2013	3.82
2014	3.91
2015	4.076
2016	4.084
2017	4.108
2018	4.169
2019	3.394