Year	current US$
1995	30012636671.67976
1996	33073399873.89192
1997	32448272133.131176
1998	37182549864.76377
1999	34348743999.91127
2000	31730959290.854393
2001	32890149148.733486
2002	30891991732.174713
2003	35362911553.51851
2004	35977479169.36649
2005	50571686665.63849
2006	58954280944.122086
2007	79659993930.5262
2008	95825857444.78969
2009	73320573636.71269
2010	75596387954.76404
2011	91962911641.7717
2012	83850009582.5572
2013	89712511265.0473
2014	97515956746.17741
2015	94071006764.82292
2016	90477557208.19533
2017	99085564266.23428
2018	114919860973.8803
2019	120736652612.72993
2020	126839150785.87251
2021	139482112710.08673
2022	135307110619.2844
2023	159058509493.0212