Year	current US$
1989	5964114219.50375
1990	5497340866.94537
1991	8497390599.42073
1992	8794479485.09852
1993	11851716095.0497
1994	14936859452.3349
1995	19498387098.9045
1996	22941607501.8696
1997	24830351050.5609
1998	25103546635.2015
1999	25847140442.6733
2000	26985395033.1689
2001	28329352859.3552
2002	30126708901.7711
2003	33256196000.0716
2004	36098867269.3243
2005	44770564641.0174
2006	50756155340.1632
2007	59933491139.7424
2008	75584651634.7893
2009	80874256362.077
2010	115332338086.026
2011	135101994515.16
2012	154477720233.241
2013	171082680414.096
2014	188100250560.32
2015	193012873974.015
2016	207119930081.264
2017	226109651614.286
2018	251443799424.426
2019	270987124646.919
2020	284265645145.513
2021	296054908425.414