Year	current US$
1990	4282653983.780456
1991	4986598286.107743
1992	4710016556.72211
1993	4391808814.133772
1994	4563061451.094382
1995	5012299513.839249
1996	6147490412.7479315
1997	7119047249.529303
1998	10432216853.599592
1999	10989810765.997766
2000	11357323709.582073
2001	11132463325.88815
2002	11428377647.805426
2003	12110260196.158226
2004	12848167132.171637
2005	13906292185.10334
2006	14079261585.326021
2007	16558388841.680588
2008	20292298305.499615
2009	21400204761.280594
2010	24460455287.31038
2011	27088549644.813602
2012	31075201889.95457
2013	35136206463.59439
2014	37698953679.18041
2015	34986335410.2141
2016	34340535166.121536
2017	36434407971.37608
2018	38757258564.17058
2019	40547133031.752235
2020	41134239667.99076
2021	43836560335.67302
2022	47860476159.87127
2023	49055394621.03705