Year	current US$
1990	8995433951.203663
1991	9842267248.012312
1992	8630701857.199177
1993	9672438150.93472
1994	7472270702.245901
1995	5725286682.849251
1996	6662087912.087912
1997	6706938676.318062
1998	5691077775.924239
1999	5245671189.342211
2000	5251957281.477576
2001	5673779963.772427
2002	6982677165.354331
2003	8745312500
2004	10722807615.384615
2005	12848550617.746307
2006	15563669140.328814
2007	19933552186.08556
2008	25255769629.98197
2009	26989295862.736874
2010	23975026622.428837
2011	11974656741.97322
2012	29017564161.501514
2013	34997389304.95749
2014	25408243621.11974
2015	16894027700.349693
2016	13242815396.48827
2017	13667690232.598183
2018	18533195308.018436
2019	24952045859.755997
2020	14104569345.998716
2021	25014842754.060593
2022	24378965589.242027
2023	20854427793.07122