Year	current US$
1980	42265639.655370854
1981	47973493.86263685
1982	52299005.450161874
1983	64075317.92082661
1984	61396391.99995282
1985	74326435.57352197
1986	81700368.24688742
1987	90160675.84770282
1988	108356039.83967042
1989	96976980.67856152
1990	67765264.45138344
1991	82616745.53465763
1992	97991294.34071185
1993	97006948.28226483
1994	110899659.33932905
1995	122929124.94086348
1996	114558978.3901092
1997	115102188.76914637
1998	124198469.85042062
1999	159861753.08720657
2000	241211808.2124392
2001	308770341.74834305
2002	379990469.73020685
2003	433633410.6406689
2004	506908314.423695
2005	530952533.3006515
2006	455172404.980768
2007	505129651.2676883
2008	595836486.3319458
2009	662672690.3879572
2010	1083408609.7370584
2011	1342511852.2898066
2012	1368403319.771314
2013	1235023195.4717329
2014	1145104344.7862473
2015	1229231085.236932
2016	1343443891.4506896
2017	1407508061.5371537
2018	1385411899.7277753
2019	1254206793.6722631
2020	949702882.3079331
2021	1221438816.0320666
2022	1600350290.4178848