Year	current US$
1998	48480000
1999	50040000
2000	42970000
2001	39040000
2002	39750000
2003	44380000
2004	49217894.7981909
2005	80282305.108049
2006	89055616.1502904
2007	109177969.375558
2008	136569580.136731
2009	138741437.375089
2010	146392824.275992
2011	158411749.981598
2012	158411749.981598
2013	158411749.981598
2014	158411749.981598
2015	158411749.981598
2016	158411749.981598
2017	158411749.981598
2018	158411749.981598
2019	158411749.981598
2020	158411749.981598
2021	158411749.981598
2022	158411749.981598
2023	158411749.981598