Year	current US$
1960	22968893.656647734
1961	23961099.469819188
1962	25650809.431177832
1963	26982797.56847738
1964	24650171.468321655
1965	25651983.763352506
1966	24922821.370766047
1967	28208827.805363897
1968	29349907.62455005
1969	29520630.69379128
1970	32490217.72137123
1971	33665459.67723575
1972	41622422.60845475
1973	50249185.93739024
1974	47776390.85919181
1975	62618723.83790243
1976	60012429.60393294
1977	62316914.70691267
1978	77241465.83208609
1979	95194823.71055764
1980	121450465.4745226
1981	118241743.99126332
1982	132985901.21472827
1983	157977872.1082348
1984	143263661.29862407
1985	160707723.86371854
1986	203866094.930914
1987	242898903.9277025
1988	213712872.9985792
1989	166519176.9822891
1990	344355583.72682405
1991	321437714.239037
1992	267058711.7954931
1993	346975932.86152405
1994	249826597.28800276
1995	313460068.8894089
1996	319036310.70621634
1997	299710089.9788177
1998	321998014.1597167
1999	299558194.3548948
2000	284436235.0776581
2001	296355081.0911689
2002	326585474.49031126
2003	472276240.1087119
2004	545329876.1884104
2005	590502693.6481233
2006	679968879.7807344
2007	781654190.1045091
2008	1001636470.2531496
2009	1099356624.4280648
2010	1069090438.8458732
2011	1178782768.058405
2012	1239843837.175125
2013	1382249779.5624967
2014	1352391116.5025134
2015	1299546342.8736148
2016	1215302355.8509483
2017	1331004519.2792473
2018	1484788763.5643182
2019	1488296199.7216372
2020	1788188516.3284242
2021	1782198673.877646
2022	1752620536.2083237
2023	1869787796.4871116