Year	per 1,000 adults
2004	18.76
2005	19.89
2006	28.76
2007	33.57
2008	36.29
2009	43.15
2010	50.04
2011	55.87
2012	64.56
2013	67.29
2014	75.29
2015	71.86
2016	69.95
2017	82.94
2018	86.2
2019	94.47
2020	100.02
2021	105.02