Year	current US$
1990	110341998248.691
1991	104287467399.029
1992	108280086992.234
1993	96356828140.6508
1994	98748533218.5774
1995	130370595240.93
1996	153161683397.25
1997	145381219462.968
1998	133876737842.069
1999	124102657782.154
2000	103709923160.66
2001	113768284465.214
2002	118279905806.902
2003	137077581494.79
2004	160034699022.941
2005	146155551386.543
2006	160825935234.881
2007	181091178427.949
2008	146202292180.645
2009	86120565412.1049
2010	67580235287.7087
2011	73262332906.6801
2012	50541872111.1236
2013	62679576342.994
2014	83237049825.1521
2015	64605073931.0034
2016	101765909786.236
2017	123825792800.732
2018	145605754648.825
2019	142036773421.611
2020	105310090436.867
2021	164893883309.662