Year per 100 people 2002 0.272195628 2003 1.055900856 2004 3.772364466 2005 7.825360282 2006 13.26388977 2007 17.40254331 2008 20.01717279 2009 21.6983585 2010 22.54270834 2011 23.56201484 2012 24.36345313 2013 25.91535275 2014 27.23307055 2015 28.06545986 2016 28.84362062 2017 29.31351211 2018 29.58233383 2019 29.87220842 2020 30.65985675 2021 31.62516349 2022 32.08191024