Year	current US$
1990	92021327.9953954
1991	120083271.591525
1992	121022358.305701
1993	124065100.592581
1994	132007831.243472
1995	141440304.786453
1996	148109625.660913
1997	152432544.152175
1998	155549365.571514
1999	147796174.83219
2000	151845215.407622
2001	151621423.573669
2002	146358051.31002
2003	113696286.720714
2004	118456313.112965
2005	169925338.447366
2006	165677829.76728
2007	173819862.592308
2008	172672664.232057
2009	176399803.348279
2010	183795130.546091
2011	205362635.766262
2012	232883727.997156
2013	250662669.503502
2014	261994625.189726
2015	273313780.831049
2016	279353298.813967
2017	280148981.849332
2018	283567977.605468
2019	281110845.422165
2020	266161239.924922
2021	285306596.207104