Year	current US$
1970	7260000.229
1971	7260000.229
1972	13859999.66
1973	12539999.96
1974	18479999.54
1975	13199999.81
1976	9899999.619
1977	18479999.54
1978	26399999.62
1979	19139999.39
1980	27719999.31
1981	78540000.92
1982	67980003.36
1983	58080001.83
1984	56759998.32
1985	66000000
1986	52139999.39
1987	66000000
1988	76559997.56
1989	89099998.47
1990	139259994.5
1991	124080001.8
1992	114839996.3
1993	118139999.4
1994	137279998.8
1995	87497853.0619388
1996	87542881.4214162
1997	506615136.791924
1998	531912792.980236
1999	584854296.868427
2000	537900024.4
2001	50914426.2781064
2002	57143479.9765542
2003	65845295.3810806
2004	375811334.23186
2005	424991045.929029
2006	570459274.012713
2007	645207871.37258
2008	667317334.023689
2009	631460883.164752
2010	685757272.443359
2011	934149203.154614
2012	1211021439.49348
2013	1304277230.82376
2014	1440846249.81752
2015	1569267849.8376
2016	1744639174.70127
2017	1962273106.47771
2018	2720366061.45975
2019	2838192215.41577
2020	3107932253.39579
2021	3770089638.54769
2022	4059710201.31198
2023	4213730000