Year	current US$
1998	35342300000
1999	112719060000
2000	69710920000
2002	37333410000
2003	72231500000
2004	105499780000
2005	177522470000
2006	220426620000
2007	355511100000
2008	159659370000
2009	273898710000
2010	375394380000
2011	252830520000
2013	244022800000
2014	255557110000
2015	230007370000
2016	217618191874.82382
2017	278268070000
2018	190732060000
2019	227834730000
2020	282387420000
2021	213819080000
2022	379996200000