Year	current US$
1990	1858339222.614841
1991	1993484693.8775508
1992	907250245.5313298
1993	1208725258.6206896
1994	1598021678.1553037
1995	2147407282.418097
1996	2137909223.3012745
1997	1683432933.6946414
1998	1634865912.1809435
1999	1717452497.3081708
2000	1991886151.384713
2001	2016972114.3305671
2002	2125787757.01404
2003	2590945317.479255
2004	3079724880.420299
2005	3490222108.6033688
2006	3861909344.389108
2007	4724499543.559501
2008	5460822849.929383
2009	5367390334.479766
2010	5182832490.688688
2011	5782008361.815543
2012	5487714096.293087
2013	5932944733.97782
2014	6115924775.800641
2015	5407684866.370798
2016	5715057267.651414
2017	6166782687.524543
2018	6889655054.354581
2019	6932855541.319667
2020	6990826656.348564
2021	7932934370.971736
2022	7790947279.486913
2023	8596262305.611135