Year	current US$
1994	42000000
1995	52000000
1996	63000000
1997	80000000
1998	63000000
1999	84000000
2000	127000000
2001	100000000
2002	97000000
2003	88000000
2004	107000000
2005	105000000
2006	115000000
2007	116000000
2008	130000000
2009	90000000
2010	107000000
2011	129000000
2012	142000000
2013	169000000
2014	165000000
2015	150000000
2016	154000000
2017	182000000
2018	176000000
2019	193000000
2020	149000000
2021	156000000
2022	207000000
2023	242000000