Year	current US$
1979	2640000.10490417
1980	53649997.711181596
1981	75090003.9672852
1982	104330001.831055
1983	139279998.779297
1984	168300003.05175802
1985	268679992.675781
1986	283190002.441406
1987	358190002.441406
1988	101719993.59130901
1989	114619995.11718799
1990	243440002.44140598
1991	116239997.86377
1992	82839996.3378906
1993	80650001.5258789
1994	71639999.3896484
1995	90559997.55859381
1996	152169998.168945
1997	112159996.032715
1998	117830001.831055
1999	142949996.94824198
2000	149000000
2001	172570007.32421902
2002	146120010.37597698
2003	148149993.89648402
2004	160650009.15527302
2005	200499984.741211
2006	234459991.455078
2007	320839996.33789104
2008	366959991.455078
2009	236570007.32421902
2010	296070007.324219
2011	395390014.64843804
2012	479399993.89648396
2013	460890014.64843804
2014	386500000
2015	399967529.296875
2016	509628662.109375
2017	548682128.90625
2018	518537048.339844
2019	604175170.898438
2020	486922668.457031
2021	377946990.966797
2022	495027283.9404645