Year	current US$
1986	46669620.6157671
1987	48338609.6693378
1988	55934301.2779973
1989	60152758.7257925
1990	69335714.8970661
1991	87879794.2800962
1992	103864071.62782
1993	105348683.290156
1994	109625075.844275
1995	121054098.606012
1996	122428079.537062
1997	143881571.025805
1998	143227515.125554
1999	152877532.785651
2000	143169237.69563
2001	144010671.868862
2002	151423727.656872
2003	198309163.58959
2004	182888077.838994
2005	129835041.674016
2006	248094124.908065
2007	373088510.528219
2008	393875708.504302
2009	487304841.26333
2010	523148046.464327
2011	508430447.33338
2012	608528473.852278
2013	709904588.147409
2014	729036594.994151
2015	678946700.960907
2016	654660340.800332
2017	923377955.272959
2018	1228902020.25742
2019	1297937323.5406
2020	1465277123.12949
2021	1772473946.31163