Year	current US$
1990	409696021.872885
1991	442175431.134732
1992	493774389.682204
1993	567891951.768687
1994	634950216.723462
1995	715132466.513841
1996	775650143.816144
1997	843864441.039368
1998	881636218.440361
1999	940448377.743156
2000	1058011841.7056
2001	1124626431.0696
2002	1230930735.71366
2003	1322340726.03623
2004	1393463446.27678
2005	1419473643.67068
2006	1577615380.429
2007	1715166286.28996
2008	1790345589.45242
2009	1815296854.90926
2010	2015337571.8039
2011	2082617975.82224
2012	2363187816.1182
2013	2165800865.34384
2014	2179171431.35382
2015	2299874224.36769
2016	2333532917.89374
2017	2454935482.81036
2018	2393037855.62109
2019	2554799448.84603
2020	2457923329.98498
2021	2699326408.59763