Year	current US$
1998	150000
1999	370000
2000	520000
2001	490000
2002	1250000
2003	1080000
2004	4840000
2005	9500000
2006	14020000
2007	16120000.000000002
2008	22010000
2009	18440000
2010	18760000
2011	24210000
2012	23240000
2013	30680000
2014	37520000
2015	33890000
2016	43410000
2017	43010000
2018	48760000
2019	48490000
2020	49930000
2021	60230000
2022	200930000