Year	current US$
1970	5730000.056326384
1971	4739999.9387562275
1972	10979999.918490645
1973	14130000.123754155
1974	32109999.44806098
1975	30699999.516829856
1976	18740000.01512467
1977	36410000.28140847
1978	97380001.61014491
1979	44030000.6177276
1980	48909999.38547616
1981	126520000.33110382
1982	72149999.4397164
1983	104089998.55816357
1984	70999999.32944778
1985	104609999.91372226
1986	130720000.49427149
1987	131909998.1337786
1988	168880002.10933378
1989	182760001.80654228
1990	622230003.9678818
1991	521479999.870062
1992	967459997.6427853
1993	829109992.6196047
1994	1323860001.4057012
1995	1425440014.5374246
1996	1534540005.564691
1997	1462830014.1505897
1998	1812019993.0258107
1999	2487769980.035723
2000	2535660004.8616524
2001	2713759987.227619
2002	1646169997.4220247
2003	2528979963.097721
2004	3720270013.7086263
2005	1203159993.6634307
2006	1674899999.082088
2007	1576839991.5099158
2008	1946059992.6114073
2009	1847500014.7111719
2010	1729030003.6072733
2011	3707340035.557753
2012	3387870031.5952315
2013	3033330033.3023067
2014	2541889999.985695
2015	2473810009.3565884
2016	2681649967.610837
2017	2572589990.8542643
2018	2758119995.832443
2019	1829450001.001358
2020	3737250007.212161
2021	3004409987.0920205
2022	2614770004.2873616