Year	current US$
1997	127000000
1999	16000000
2001	28000000
2002	4099999.9999999995
2004	25000000
2005	25000000
2007	655030000
2008	47100000
2010	1863500000
2017	12500000
2018	100210000
2020	100000000
2021	41200000