Year	current US$
2001	10242340340.367598
2002	11142485827.093262
2003	12124060313.13819
2004	12929750524.1661
2005	14219278420.694351
2006	15365627120.49013
2007	17365487787.61062
2008	23019664125.255276
2009	25948399046.97073
2010	29068775901.974133
2011	34902893995.91559
2012	36449312457.45405
2013	42851083185.840706
2014	44070401007.48809
2015	44511095983.66235
2016	44725287978.21648
2017	50945949625.59564
2018	49902518720.217834
2019	51225237413.20627
2020	50499233955.07148