Year	current US$
1960	33462915.01301658
1961	36184576.89584633
1962	39071032.505450286
1963	41766731.39592919
1964	44746737.23159974
1965	48371290.487398334
1966	51395918.73168541
1967	59060734.95572136
1968	72315403.94812816
1969	70816105.12814443
1970	87519227.70911792
1971	99376231.67575276
1972	118784516.08896159
1973	176339909.58257577
1974	232531785.47618243
1975	278090297.8737214
1976	305670076.4175191
1977	383628675.9466008
1978	472917574.80767536
1979	605945715.8036679
1980	777960050.1785197
1981	842079599.5879236
1982	782053510.8156956
1983	833374357.0669307
1984	840128376.0521822
1985	690567007.6270639
1986	825987790.1853185
1987	1136132836.1151464
1988	1317601340.4878519
1989	1566689132.7846835
1990	2174670217.0316467
1991	2377128124.509969
1992	2611146002.4410763
1993	2634978281.728795
1994	2847750819.940811
1995	3287092197.6605644
1996	2984059007.3331995
1997	3194619864.39547
1998	3208775450.3204064
1999	3297036693.4485483
2000	3370241875.4165196
2001	3180750530.7128673
2002	3249964600.6063414
2003	4550920402.432372
2004	5403020903.918686
2005	5704114057.888874
2006	6054504913.983843
2007	6609289861.21066
2008	7406853738.571976
2009	8106777741.0986395
2010	9294629420.964508
2011	10404065670.181171
2012	10824421777.299334
2013	11079404024.90419
2014	11070980994.71674
2015	10504888610.831167
2016	10433306076.290243
2017	11421792752.722733
2018	12359349047.424135
2019	12694107234.684101
2020	12669347147.170948
2021	14031802155.230806
2022	13913579489.632307
2023	13943338927.175346