Year	current US$
1976	192620696.62240282
1977	228534828.4051538
1978	287184978.76534796
1979	311503861.379672
1980	263915009.9970173
1981	250656238.17355752
1982	193146961.84427756
1983	196477080.5214331
1984	188038940.799472
1985	200744919.06515294
1986	288868007.22214574
1987	401841341.8565629
1988	602036431.0178993
1989	569189024.3306668
1990	811519950.2242646
1991	812777732.2040942
1992	889816778.1346879
1993	912332292.1403387
1994	1080181423.909656
1995	948972010.5759029
1996	1098109556.8676002
1997	1079613176.6063747
1998	953188684.8680742
1999	1169596984.9369135
2000	1051264139.3809373
2001	1029244929.6168134
2002	1037154629.1969829
2003	1308471143.5506544
2004	1428101013.592842
2005	1393771814.8619182
2006	1630342209.1293046
2007	1955664327.4103796
2008	2373366059.3013606
2009	2328863134.31248
2010	2416646093.4759164
2011	2702122730.653401
2012	2635110608.42253
2013	2528161783.592765
2014	2416266913.6642914
2015	2029084311.9860113
2016	2109623736.0299678
2017	2305300294.0019155
2018	2659307369.512943
2019	2755435836.824412
2020	1954815639.6332085
2021	2250304613.821832
2022	2553166929.8725576
2023	3386357347.948764