Year	constant 2015 US$
1991	21523682660.158707
1992	22484968353.17798
1993	23274259945.349373
1994	19651834875.857224
1995	18543779342.387764
1996	18420276235.92668
1997	20651345791.704082
1998	21973787868.517418
1999	21323108145.87965
2000	21911848707.749554
2001	23945200487.71197
2002	25709275690.553295
2003	26768329289.86176
2004	27411219121.2336
2005	29123530136.389565
2006	31620462621.83929
2007	35384895974.87649
2008	35547212621.2772
2009	37764815572.179054
2010	39023521808.83479
2011	42476083985.44867
2012	43171348901.57208
2013	44997516228.11522
2014	47927642355.34478
2015	45620429669.27304
2016	45289503927.2585
2017	45325676882.37134
2018	48027497592.92119
2019	49730430595.35444
2020	49589421261.41536
2021	50532404125.14637
2022	51831908884.899414
2023	49680855155.95523