Year	current US$
1970	66080009.46
1971	83962074.28
1972	122832298.3
1973	193900329.6
1974	213557098.4
1975	222246444.7
1976	211665603.6
1977	208692459.1
1978	247260421.8
1979	273925994.9
1980	303632507.3
1981	365259887.7
1982	365698913.6
1983	381575408.9
1984	403232727.1
1985	311754455.6
1986	291884246.8
1987	340696655.3
1988	428584075.9
1989	555251220.7
1990	601367466.962332
1991	522617128.63364
1992	457806049.587982
1993	441562934.039845
1994	487695522.157596
1995	570167764.18997
1996	728177753.776965
1997	771092538.014612
1998	796700672.873205
1999	870854803.38831
2000	868990623.794047
2001	855078367.421529
2002	991488492.414696
2003	1380807137.81441
2004	1608966509.53885
2005	1531079216.44992
2006	2051227219.45335
2007	2980870874.07376
2008	3366427026.74913
2009	3224401181.6775
2010	4655461396.62226
2011	6597638171.47406
2012	7288016963.60232
2013	7353448444.88035
2014	6916961339.98325
2015	6032850094.65993
2016	6179374297.70856
2017	6793253706.78176
2018	7268447090.4099
2019	7438424190.33028
2020	4422969039.30168
2021	3810033247.02925
2022	6545836916.46158