Year	current US$
1995	17239313352.67439
1996	18557952583.976192
1997	21028506546.070377
1998	22742232321.0036
1999	21114394925.120686
2000	24253867792.289043
2001	24587316793.30789
2002	23119130737.306725
2003	23680941781.44757
2004	27033619918.96434
2005	29608250387.437138
2006	32820475763.918697
2007	37187882895.505264
2008	41859267200.11307
2009	39013759027.493744
2010	46331355212.47516
2011	52281054118.86101
2012	56834140727.08513
2013	48975323529.34828
2014	52282239818.49856
2015	49944040133.23346
2016	45777491606.85336
2017	47987635731.26216
2018	60183742203.18751
2019	62690311236.9859