Year	constant 2021 US$
1990	2579859944.3435674
1991	6608700047.016145
1992	3529899976.501243
1993	2606540023.803714
1994	4153730079.650878
1995	5396620208.740234
1996	3106539985.656742
1997	2893350009.9182115
1998	3884679992.6757846
1999	4613400009.155278
2000	5463599945.068365
2001	5646260032.653814
2002	3927509925.842285
2003	4657299987.792973
2004	5292270095.825201
2005	139600006.10351598
2006	217330001.831055
2007	163919998.168945
2008	222100006.10351598
2009	158809997.55859402
2010	127629997.253418
2011	250000