Year	per 100,000 adults
2004	15.07
2005	13.32
2006	12.61
2007	12.16
2008	12.31
2009	11.82
2010	11.69
2011	11.67
2012	11.96
2013	12.39
2014	12.75
2015	12.79
2016	12.37
2017	11.27
2018	10.74
2019	9.53
2020	7.98
2021	7.6