Year	current US$
1970	47299999.713897705
1971	46489999.899640664
1972	37160000.625997745
1973	45340000.51021572
1974	56459999.62091449
1975	73019999.83191492
1976	71909998.80246827
1977	87590000.62942508
1978	70789998.93367292
1979	119259999.69244005
1980	80300000.48875815
1981	109169999.5994568
1982	120970000.50544728
1983	111199998.74569473
1984	82350000.85830694
1985	110770001.41143794
1986	105099999.07016742
1987	76770001.23262411
1988	119410002.11238858
1989	107060001.64151189
1990	123449999.80926518
1991	149439999.81880197
1992	110470000.8630752
1993	115749999.40395372
1994	75649999.02248381
1995	79729999.06539923
1996	17409999.921917915
1997	38639999.62061642
1998	19689999.852329493
1999	23610000.19311904
2000	27700000.643730164
2001	18089999.67575074
2002	20240000.069141373
2003	21879999.577999122
2004	13319999.858736992
2005	20390000.063925978
2006	13450000.03278255
2007	11889999.656006686
2008	16959999.84629453
2009	20949999.8576939
2010	16830000.266432762
2011	43850000.14305116
2012	30098321.452736806
2013	50270035.6543064
2014	59967550.282832175
2015	58686917.275190346
2016	63953310.884535246
2017	46193820.02577189
2018	27777242.06447598
2019	54381782.233249374
2020	58939468.92861286
2021	52686231.14004723
2022	81976347.32723232