Year	current US$
1995	3823058446.757406
1996	3467752528.5695524
1997	2830681818.181818
1998	4027174518.3205256
1999	5117858502.702714
2000	4185812072.156872
2001	3652377213.3858314
2002	3745417526.666673
2003	3674008953.7254825
2004	5107462911.969126
2005	4333166418.677041
2006	6781489245.882343
2007	8549042008.627479
2008	10086441004.687498
2009	2835592663.671873
2010	7311327416.66668
2011	8145722140.077837
2012	-1217979660.9375002
2013	-2098426501.9607902
2014	1676567989.8039157
2015	11738646382.812494
2016	9778382098.832708
2017	9715258117.647076
2018	14652102603.137245
2019	11117501356.862728
2020	598510761.0894958
2021	21504584317.829113
2022	19913149747.08179
2023	16216866874.51009