Year	current US$
2002	4413992421.258024
2003	4641182355.472896
2004	7898419361.085455
2005	15227446496.574715
2006	22761956354.051476
2007	27084890335.26458
2008	34228037375.224197
2009	19445475469.85491
2010	30995195218.624187
2011	42355514259.27943
2012	47677940090.657616
2013	42320156204.5588
2014	40596920478.44946
2015	22458998867.17482
2016	12672016228.875925
2017	17022182214.836191
2018	19942062231.488987
2019	22760369654.77702
2020	13612439217.694437
2021	25465378017.764633
2022	38213720934.38931
2023	25568301700.333584