Year	current US$
1992	9200000000
1993	16416666666.666666
1994	14952100840.336134
1995	13970425776.75489
1996	14756846153.846155
1997	14130585516.178738
1998	15221352698.894428
1999	12138243080.625751
2000	12736780455.15395
2001	12354820143.884892
2002	14594900944.765818
2003	17825444724.487755
2004	23141566292.94622
2005	30210091836.82945
2006	36961894281.34442
2007	45275711995.82495
2008	60752106347.12601
2009	50873167326.04142
2010	57231904542.87547
2011	61762382327.93193
2012	65685890438.89215
2013	75527558966.44727
2014	78812805039.07434
2015	56454889146.60878
2016	47723545321.25899
2017	54725302249.808784
2018	60031173807.719635
2019	64410122847.3508
2020	61371755326.2351
2021	69673747131.86996
2022	73775179924.60303
2023	71857382745.6066