Year	current US$
1970	19657580.8041841
1971	21256491.6071577
1972	25505485.7914317
1973	25856840.1564463
1974	33367789.6656855
1975	46643556.3996806
1976	47743207.6979841
1977	49623949.4713752
1978	61616626.493517
1979	75197986.1650611
1980	88728005.7013694
1981	104404713.03402
1982	107920641.517292
1983	112231008.30742
1984	112430552.786358
1985	113702417.659278
1986	120184080.842479
1987	119091715.574324
1988	76756960.6857357
1989	64241677.9373417
1990	72398612.8011459
1991	75563538.850096
1992	71216849.3449856
1993	79596082.0221428
1994	87035346.8225182
1995	110335457.330789
1996	79678491.1270062
1997	97451571.780135
1998	113228744.558331
1999	154667212.942028
2000	183057127.191377
2001	226498984.950174
2002	218080426.444302
2003	186622545.011361
2004	272754950.772494
2005	336915351.777756
2006	397231359.103984
2007	480179273.811615
2008	571666269.986711
2009	578350598.888904
2010	784162412.848338
2011	1122264122.49963
2012	1083678508.29658
2013	1108873585.0703
2014	1112083282.48861
2015	1327635185.98405
2016	1533445473.83251
2017	1601546907.65253
2018	2004920299.47067
2019	2248074130.84834
2020	2234603405.86241
2021	2464523873.44234