Year	per 100,000 adults
2004	18.275
2005	19.58
2006	20.64
2007	18.95
2008	19.55
2009	20.28
2010	19.47
2011	17.35
2012	16.02
2013	13.95
2014	12.39
2015	9.59
2016	8.870000000000001
2017	8.66
2018	8.765
2019	9.18
2020	8.235
2021	8.21