Year current US$ 2007 26187347 2008 39796552 2009 40885859 2010 41672311 2011 59112922 2012 56616781 2013 66156748.00000001 2014 62065735 2015 50417840 2016 60873341 2017 62253533 2018 102336649 2019 76176090 2020 54397925 2021 103189077 2022 179228712