Year per 1,000 adults 2004 244.51 2007 250.68 2008 218.14 2009 208.37 2010 233.1 2011 255.79500000000002 2012 317.88 2013 328.5 2014 371.805 2015 423.775 2016 413.265 2017 505.34000000000003 2018 491.525 2019 455.94 2020 452.025 2021 510.89