Year current US$ 2005 309999.99679625 2006 1109999.977052212 2007 2539999.9674409614 2008 2259999.9681115155 2009 620000.0103563073 2010 1479999.9836832285 2011 1889999.9987334001 2012 1069999.9891221533 2013 2879999.9263137598 2014 2210000.0213831686 2015 1629999.9617040195 2016 3839999.9178945962 2017 2090000.0184774399 2018 4730000.074952841 2019 4760000.0705569945 2020 4520000.057294961 2021 7429999.9698996525 2022 9350000.102072956