Year	current US$
2006	8333164440.81801
2007	9655788162.37815
2008	10745400711.98
2009	10093674161.8072
2010	9064406121.79263
2011	8594790051.88045
2012	7633055141.52202
2013	7481230639.09747
2014	7430691286.67725
2015	6138353300.15198
2016	6756997762.92378
2017	6122858369.12136
2018	6726724756.11911
2019	6368166038.07197
2020	5885864650.16207
2021	6697638208.87311