Year	current US$
2000	4901949701.20638
2001	6410971510.13993
2002	7687768511.71526
2003	11373457694.3419
2004	12042873734.9699
2005	10029612429.7784
2006	8005991470.85079
2007	11848808234.7872
2008	5102092102.12755
2009	8939811864.39296
2010	11390324755.9545
2011	14087885979.2614
2012	15572953293.0213
2013	22368126619.6707
2014	23481072254.081
2015	22456394705.7742
2016	24109549463.8356
2017	27203755831.6052
2018	24046849569.7559
2019	27700252693.0804
2020	23535139777.4393
2021	24220455209.6214