Year	per 1,000 adults
2004	6.25
2005	7.75
2006	14.78
2007	25.27
2008	36.2
2009	37.16
2010	37.76
2011	49.52
2012	38.91
2013	45.05
2014	64.38
2015	40.62
2016	38.4
2017	40.94
2018	42.12
2019	41.14
2020	40.89
2021	39.8