Year	per 1,000 adults
2004	18.49
2005	20.03
2006	21.79
2007	26.39
2008	36.85
2009	39.65
2010	106.32
2011	52.26
2012	53.9
2013	59.32
2014	60.12
2015	73.39
2016	72.22
2017	79.76
2018	86.14
2019	98.42
2020	106.78