Year	current US$
1994	32808000
1995	143190000
1996	103290000
1997	163820000
1998	160100000
1999	140500000
2000	174750000
2001	180830000
2002	220190000
2003	261660000
2004	367730000
2005	431300000
2006	516840000
2007	700370000
2008	950060000
2009	757630000
2010	750240000
2011	956140000
2012	981020000
2013	1103500000
2014	1106110000
2015	948630000
2016	1029730000
2017	1224000000
2018	1445760000
2019	1513730000
2020	1250730000
2021	1601880000
2022	2232140000
2023	2386660000