Year	current US$
1993	3500000
1994	17000000
1995	11900000
1996	35600000
1997	25700000
1998	19900000
1999	4800000
2000	9600000
2001	33200000
2002	48800000
2003	28100000
2004	47100000
2005	52200000
2006	70400000
2007	103200000
2008	171000000
2009	133000000
2010	115700000
2011	133800000
2012	141700000
2013	150800000
2014	181200000
2015	162300000
2016	123800000
2017	137800000
2018	159900000
2019	185900000
2020	245200000
2021	240200939.05
2022	236105492.1
2023	211646316.53
