Year	current US$
1995	165954000
1996	139185000
1997	332048000
1998	320333000
1999	236496000
2000	234444000
2001	255860000
2002	318376000
2003	386776000
2004	497877000
2005	683140000
2006	866927000
2007	1379864000
2008	1575676000
2009	2020435000
2010	2396576000
2011	2934415000
2012	4681048000
2013	4106388000
2014	4268861000
2015	4423067000
2016	4340954000
2017	4660773000
2018	4667941769.55882
2019	3733485931.16364
2020	2599375440.86471
2021	3769611938.7647
2022	5032061000
2023	6255910000