Year current US$ 2005 15829999.91998077 2006 19020000.020042073 2007 36429999.92147087 2008 20929999.954998493 2009 26559999.92787837 2010 27750000.163912766 2011 35490000.07286667 2012 31946462.932974108 2013 39759292.31941698 2014 33835720.743984 2015 34696030.79184891 2016 31159788.155462597 2017 28764300.022041433 2018 7271768.40323955 2019 33948079.9511075 2022 2249432.000797243