Year	per 100,000 adults
2004	9.92
2005	12
2006	13.915
2007	16.425
2008	17.555
2009	17.725
2010	18.22
2011	19.105
2012	19.94
2013	20.685
2014	20.83
2015	20.58
2016	21.68
2017	20.72
2018	19.54
2019	18.71
2020	18.61
2021	18.57