Year	current US$
1989	7482316413.980885
1990	8430614595.3399935
1991	9049788671.37693
1992	9991022976.59946
1993	9815092448.346777
1994	10523272592.62666
1995	11474802142.518297
1996	12030316088.27977
1997	12366135340.977299
1998	13043705113.508242
1999	13778855341.02266
2000	14118474557.359066
2001	14740025809.28724
2002	16155784800.297758
2003	19213301805.419605
2004	21329378044.064064
2005	23389688811.794266
2006	25291733302.3432
2007	29834292626.76442
2008	32277467957.755222
2009	31516021749.18357
2010	32598508578.646805
2011	36310096348.155754
2012	36312238606.326225
2013	37593872488.59765
2014	38841066263.65295
2015	36555136567.18926
2016	37654973981.922676
2017	41075213765.68992
2018	44216058271.823456
2019	45260994996.7546
2020	46513618734.25434
2021	50600901005.19804
2022	50989571100.93183
2023	56105625542.66963