Year	per 100,000 adults
2009	21.35
2010	21.17
2011	21.07
2012	20.93
2013	20.76
2014	20.58
2015	20.42
2016	16.69
2017	16.54
2018	16.4
2019	16.27
2020	16.16
2021	16.04