Year	current US$
1979	2639999.9894201723
1980	44759999.30873515
1981	62060000.41216613
1982	88870000.80756837
1983	124490000.12502074
1984	152210001.6511978
1985	257070000.9297581
1986	285589999.24734235
1987	364499998.72781336
1988	101479998.7263978
1989	117210000.06794932
1990	244270001.99258336
1991	92679999.54707915
1992	58049998.680129655
1993	81979999.79369345
1994	71780000.6978214
1995	95270000.11503698
1996	149540001.41844147
1997	116209998.84046617
1998	91560000.80145893
1999	135429999.30307275
2000	144040000.78886747
2001	167459999.28377566
2002	134980000.08240336
2003	146509999.71665442
2004	153210000.67703426
2005	192759999.0367889
2006	234429997.18710768
2007	328880000.7253886
2008	369099999.8971822
2009	236639999.25181267
2010	296310001.6638638
2011	394270001.333207
2012	479679999.1074951
2013	460249999.6963888
2014	400759998.7722934
2015	396901515.096426
2016	509890203.9714159
2017	545633289.4936203
2018	519377371.55612564
2019	601004507.3255895
2020	485133431.89656734
2021	377355998.2813895
2022	497175863.97752184