Year	current US$
1970	13152402668.3845
1971	15255761083.5037
1972	18841021796.9313
1973	25277684023.632
1974	30073376720.3413
1975	34111254339.1146
1976	36734077960.9904
1977	43899511685.2878
1978	52610376398.7456
1979	62744574316.461
1980	69267069165.7287
1981	59524054057.6281
1982	59811894152.4617
1983	60803319442.1546
1984	57254932495.3408
1985	58558952986.5133
1986	83406085315.2518
1987	104471144118.856
1988	112870005211.502
1989	112712887032.256
1990	141275741945.918
1991	146614446328.637
1992	164652124508.436
1993	160097756075.582
1994	170996237597.032
1995	201778869852.38
1996	199178805103.143
1997	177545047028.139
1998	181791010854.672
1999	178669957528.247
2000	163368840443.054
2001	161995184033.075
2002	177160716039.954
2003	216991578039.717
2004	250154087655.771
2005	262127244913.877
2006	281069136819.862
2007	324843023350.287
2008	363109392724.626
2009	330807707768.652
2010	326358893217.723
2011	357695774669.505
2012	337036358149.526
2013	353558345695.025
2014	362927559224.193
2015	309509620837.21
2016	324970568481.538
2017	338193680745.798
2018	368223677922.523
2019	361524412024.267
2020	352354851282.374
2021	387622418852.71