Year	current US$
1992	7259475218.658893
1993	12152190622.598001
1994	10316128519.166534
1995	10147222871.353048
1996	11723577844.311378
1997	11986988679.245283
1998	11900021168.50127
1999	14202832156.61104
2000	10338082759.203686
2001	8702256996.689737
2002	7354352886.103273
2003	7416808738.443799
2004	8242479395.604395
2005	9429679048.28652
2006	11236244380.271059
2007	14918867730.395416
2008	19317827570.518654
2009	23380352342.35341
2010	36839486785.713905
2011	44053815524.39482
2012	50487525998.81465
2013	56665192626.72886
2014	61897783147.11213
2015	67681194333.890945
2016	69282997716.47955
2017	47655028553.348946
2018	39844298853.859924
2019	45630858499.20007
2020	45189744418.47346
2021	53157377150.76516
2022	62963153282.5632
2023	68971869564.04192