Year	current US$
1970	106050000.63963237
1971	133920000.40225677
1972	122210000.00834459
1973	222330001.25735998
1974	335509998.8728763
1975	415150001.3526531
1976	284520002.4936349
1977	316830000.4191697
1978	463480000.0879912
1979	666549999.0824606
1980	618649995.2077869
1981	759000001.6391277
1982	628879998.994991
1983	559409997.8506565
1984	687470001.9806622
1985	600659997.446463
1986	794399992.4063681
1987	822670001.3540686
1988	1294860016.7259579
1989	1255850012.600421
1990	1333000002.5182958
1991	1422260007.9346445
1992	2029830000.3092737
1993	1458500004.0084121
1994	1635849998.9956615
1995	1695060000.300408
1996	1632800007.7903266
1997	1405670002.155006
1998	1549119992.0549986
1999	1339489998.690784
2000	1079719990.0746343
2001	1602920005.3401296
2002	1738819999.5644388
2003	2472809987.5450134
2004	2868210016.36982
2005	3117379993.200303
2006	3411419997.85602
2007	4173799974.888563
2008	5042380001.783373
2009	4753619956.403971
2010	5121059986.099602
2011	4662059977.192431
2012	4403209995.448589
2013	4588029985.71098
2014	5132259995.877744
2015	4302740000.840279
2016	4955729990.178719
2017	5124389995.247126
2018	5724379980.683328
2019	4889899988.487363
2020	5907910003.505649
2021	5573010028.228165
2022	4523939998.213204