Year	current US$
2007	838058278
2008	915168875
2009	615940386
2010	1253040816
2011	2547547118
2012	2356378964
2013	2546304397
2014	2708974331
2015	2052941145
2016	2105999082
2017	1843541921
2018	1907601625
2019	1734953949
2020	2169142528
2021	2680894652
2022	2285853223