Year	per 100,000 adults
2004	18.83
2005	18.73
2006	18.56
2007	18.62
2008	19.19
2009	19.19
2010	18.67
2011	19.19
2012	20.41
2013	20.53
2014	21.24
2015	20.85
2016	20.34
2017	19.51
2018	18.98
2019	18.7
2020	17.88
2021	17.13