Year	per 1,000 adults
2004	3.3
2005	7.29
2006	10.98
2007	22.04
2008	26.46
2009	16.23
2010	18.76
2011	21.8
2012	26.13
2013	34.88
2014	46.04
2015	36.91
2016	32.07
2017	33.7
2018	40.18
2019	52.85