Year	current US$
1990	234989909.15531182
1991	193855098.96852288
1992	214743632.8527847
1993	171831011.2269938
1994	170901124.89609942
1995	187913687.070839
1996	234946585.22396514
1997	307444837.1320624
1998	324670941.9788695
1999	354613090.8279439
2000	294782529.462399
2001	293770999.4236901
2002	312505663.6637172
2003	373417211.203916
2004	456081450.48024154
2005	548208927.5560814
2006	534795853.2154672
2007	744645523.4578696
2008	851048023.4044757
2009	884552501.2804908
2010	1046345552.0483705
2011	1122208612.1400928
2012	1012645995.3493476
2013	1061233565.8418838
2014	1285279774.6349413
2015	1501544520.614995
2016	1515046146.1501043
2017	1703242899.4454973
2018	1739741296.7116706
2019	1836276964.3504
2020	1883225579.4423199
2021	2070964218.153429
2022	2277080707.7677026