Year	current US$
1997	5800000
1998	4500000
1999	39400000
2000	21019632.39
2001	19835373.23
2002	18911615.19
2003	22164542.57
2004	23869313.99
2005	27107352.43
2006	26741267.59
2007	31699143.19
2008	50979899.57
2009	33609069.11
2010	55132165.64
2011	76800463.59
2012	86732443.05
2013	87714487.75
2014	86131110.08
2015	95862423.06
2016	100492400.12
2017	122154261.91
2018	151149586.7
2019	169883742.14
2020	76894985.62
2021	106326823.78
2022	290325550.37