Year	current US$
1990	37590859728.50678
1991	40367421570.15764
1992	41161459544.38335
1993	31933492063.492065
1994	32884178674.351585
1995	34978010222.27505
1996	39039277199.14669
1997	35541496134.606636
1998	35165941786.55068
1999	34094508300.502007
2000	29396370765.176533
2001	29079478626.692947
2002	30277081575.451035
2003	37199680004.588165
2004	42400151924.633316
2005	37788619978.2101
2006	37935156135.52936
2007	41966778516.86288
2008	45153222419.45312
2009	39658964427.109344
2010	37926765258.333405
2011	43224525664.39697
2012	41128783442.929695
2013	45935485810.54915
2014	43193944550.6273
2015	37930917191.79685
2016	36196949383.30748
2017	38700052902.941246
2018	40696873362.35291
2019	38361480817.25484
2020	38104575951.4398
2021	40955813183.33267
2022	39606949462.84062
2023	43744236099.60861