Year	current US$
1971	1290000.0363588321
1972	2080000.0242888909
1973	5710000.17598271
1974	1699999.9601393938
1975	2469999.980181452
1976	3979999.890550964
1977	2779999.988153577
1978	570000.0021606678
1979	3240000.026300551
1980	9819999.90157782
1981	13179999.858140953
1982	16450000.192970034
1983	20700000.165030356
1984	28680000.118911248
1985	42410000.55894253
1986	49949999.717995524
1987	66620000.20034617
1988	108750000.089407
1989	137919998.95311895
1990	131930001.05395907
1991	176330000.77307218
1992	111810000.72322792
1993	54880000.22061169
1994	49900000.06370247
1995	65530000.24333596
1996	54099999.381229304
1997	51990000.12129547
1998	53559999.82170756
1999	50000000.09126963
2000	56240000.285208225
2001	51209999.80531632
2002	60759999.8936057
2003	76810000.27991833
2004	69209999.8742342
2005	107620000.19289559
2006	109030000.92320147
2007	119760000.66101554
2008	130759999.28638348
2009	151030000.99211934
2010	165149999.6148048
2011	170059999.90552673
2012	155200000.31776723
2013	151489998.26982608
2014	188989999.7301399
2015	146630000.13492998
2016	124580000.09693216
2017	108729999.2106855
2018	112070001.55933204
2019	105400000.59269367
2020	134359999.34747806
2021	131809998.29061344
2022	108959998.9298731