Year	current US$
1995	9310000
1996	14861000
1997	19039000
1998	30272000
1999	77030000
2000	100962000
2001	141882000
2002	187881000
2003	131284000
2004	172305000
2005	239397000
2006	274348000
2007	404535000
2008	567345000
2009	638101000
2010	953589000
2011	1279630000
2012	2072681000
2013	1902602000
2014	2031324000
2015	1293019000
2016	740236000
2017	603318000
2018	579500000
2019	621549000
2020	731878000
2021	812858000
2022	811938000