Year	current US$
1996	263980000
1997	189730000
1998	310942921.975705
1999	375336605.831462
2000	420288712.63084
2001	364896364.341773
2002	358775972.985109
2003	516187903.151295
2004	598082666.492227
2005	660374351.320381
2006	737922072.834888
2007	1034130155.64866
2008	1240914726.7008
2009	1086384632.25482
2010	974711351.855598
2011	1443267626.13803
2012	1361379551.13647
2013	1527390655.25901
2014	1724045879.21426
2015	1524445537.55813
2016	1532853004.32723
2017	1622275887.99764
2018	1854253953.04495
2019	1810228971.06995
2020	1651961805.91023
2021	2058998712.013
2022	2428123939.3594
2023	2860398360.69045