Year	current USD
1970	2234500072.707343
1971	2378855164.9314322
1973	2960514668.927309
1974	3831615608.2405314
1975	6241694815.934234
1976	6171852858.87881
1977	7318902288.457705
1978	8280902502.208271
1979	9334476337.968946
1980	10523132432.404814
1981	9877972456.64616
1982	9541773790.566381
1983	9640391078.041216
1984	10126338207.020807
1985	10172871513.915365
1986	10166486037.315554
1987	10249330006.63313
1988	10981631255.490768
1989	8438751913.185963
1990	12434244946.363966
1991	13020168212.242073
1992	12807156966.735424
1993	12639889894.930893
1994	13854727310.24242
1995	13739695199.12128
1996	14406175874.25456
1997	14551857464.893415
1998	15753426268.962969
1999	17131700521.177685
2000	18927147567.447803
2001	18823356239.19311
2002	21771883448.10162
2003	35593755731.164764
2004	42920685220.052666
2005	46738232228.87862
2006	15977315155.606722
2007	18746098657.990265
2008	22315851420.027363
2009	22709141141.36166
2010	22088260885.18709
2011	24990829421.145535
2012	25943162508.51023
2013	27403296031.48338
2014	30104904455.17949
2015	30813966670.75936
2016	31312002633.596424
2017	34546734175.901474
2018	33774191450.023415
2019	31723768745.890934
2020	34077252110.141674
2021	38158106710.88757
2022	34461608684.763145