Year	current US$
1991	75102564102.5641
1992	72430249632.8928
1993	65853626140.086784
1994	54213372156.47414
1995	49700386302.19125
1996	45696319751.79683
1997	51685648384.39713
1998	42834946736.98185
1999	29857638891.915195
2000	30802173362.795307
2001	38770313285.30743
2002	42091192828.479576
2003	50712136168.47639
2004	62237826659.14646
2005	88514339002.12088
2006	114954653465.34654
2007	156864752475.24753
2008	202504888251.31885
2009	123519491120.79721
2010	145186543893.94476
2011	179481605605.12668
2012	196938216592.63156
2013	206132866257.9757
2014	138184329171.04797
2015	93408020564.07463
2016	99819798058.29315
2017	120816919271.57924
2018	142317021324.46722
2019	166267327086.2583
2020	158987598415.93762
2021	202405326738.73953
2022	188727969950.933
2023	216163845296.826