Year	current US$
1993	12100000
1994	68600000
1995	59850000
1996	71180000
1997	97490000
1998	74200000
1999	48500000
2000	37800000
2001	39300000
2002	37380000
2003	200000000
2004	283840000
2005	504120000
2006	1364270000
2007	1127770000
2008	742200000
2009	198340000
2010	793530000
2011	917250000
2012	1008100000
2013	1804700000
2014	1010900000
2015	683050000
2016	815820000
2019	472010000
2020	484040000
2021	526690000
2022	351090000