Year	current US$
1995	3250647043.566586
1996	4390246103.420621
1997	5191291611.61102
1998	5376219987.183732
1999	4993246449.28602
2000	4407240560.809813
2001	4707920864.79128
2002	5920746929.16513
2003	9010151954.09138
2004	10640668695.882565
2005	11335684640.591991
2006	13040492471.422544
2007	15711442299.917358
2008	19073761953.928654
2009	15445190941.057175
2010	12278528419.048729
2011	12465309699.03576
2012	11053237375.87222
2013	11502781042.691793
2014	11248751542.71989
2015	9777955347.068203
2016	10348156126.027203
2017	10994197523.472336
2018	12305703876.042233
2019	13055551152.189293
2020	12811607612.995043
2021	14539827302.154997
2022	14057192197.694353
2023	16015943006.856522