Year	current US$
1989	7356183277.404399
1990	7961649123.070928
1991	9124027061.413975
1992	10240968795.890978
1993	9226744223.346478
1994	9988756391.998098
1995	11552554673.322971
1996	12356422051.365267
1997	12587450428.993042
1998	12792581821.258913
1999	11260044722.167057
2000	12735136664.37942
2001	11971132469.076887
2002	14398717281.721247
2003	17806486036.872738
2004	21709647390.306774
2005	26252682416.62116
2006	32952026374.963253
2007	40414543979.28244
2008	42997102574.15643
2009	29477016586.55498
2010	33608090073.84331
2011	36416956330.41158
2012	39603646353.75677
2013	39243442356.09488
2014	37136864135.95674
2015	34182001002.27205
2016	38729729263.22317
2017	45463067818.08674
2018	51215986415.7185
2019	49385252385.45398
2020	47287988407.65323
2021	49702557943.722404
2022	55410826601.41272
2023	57760356260.42143