Year	current US$
1976	190874874.70607898
1977	180598780.55348256
1978	208048237.10451233
1979	248706254.82963532
1980	133011279.18479565
1981	156599192.95852405
1982	169313258.95480844
1983	185956385.17271152
1984	192266725.3836668
1985	238157738.5143247
1986	434656739.3352729
1987	571750582.7780813
1988	634645486.2685909
1989	604927625.6746054
1990	720896756.4157624
1991	826457834.3562909
1992	980412699.5448613
1993	948476801.2284656
1994	946259290.4927326
1995	1072294531.0269288
1996	1192326362.4217246
1997	1192351499.7795224
1998	1164743373.491465
1999	1171483105.3050487
2000	1315780273.889598
2001	1385495646.468341
2002	1401799511.4097204
2003	1588471476.7362692
2004	1608637567.5427513
2005	1273889775.5018947
2006	1541845245.6199327
2007	2155617309.5398135
2008	2021943244.551061
2009	1478146175.5483272
2010	1482852044.8535366
2011	1416469739.119666
2012	2002944390.5627437
2013	1773171904.3066788
2014	1692626742.919952
2015	1669948398.038918
2016	1642937648.3232985
2017	1922951424.7815046
2018	2220375561.290677
2019	2023089911.2297015
2020	921221138.0329307
2021	710866829.8768854
2022	723859710.1614151
2023	2401693112.8016157