Year	current US$
2002	8725779778.62591
2003	9676099609.870752
2004	13749775665.019972
2005	24225651509.97012
2006	33245117538.71612
2007	44319670720.5054
2008	64168423018.91502
2009	41310610391.38847
2010	51572807437.88308
2011	67822781239.104805
2012	71632968360.95421
2013	67158241199.63245
2014	60770402473.29124
2015	26926846081.494938
2016	14838933358.41303
2017	21373167719.717617
2018	32444713329.510246
2019	28919814315.78951
2020	18583150427.353004
2021	31753057852.391354
2022	46353087833.31391
2023	33781308111.349567