Year	current US$
1994	14000000
1996	6000000
1997	12000000
1998	17709999.084472697
1999	12500000
2000	12590000.1525879
2001	12739999.7711182
2002	20430000.3051758
2003	16079999.923706101
2004	25899999.6185303
2005	18530000.6866455
2006	12420000.076293899
2007	12699999.8092651
2008	35380001.0681152
2009	34930000.3051758
2010	45540000.9155273
2011	57569999.6948242
2012	112430000.30517599
2013	86510002.1362305
2014	11720000.2670288
2015	9000000
2016	7039999.96185303
2017	13500000
2018	13579999.923706101
2019	15869999.8855591
2020	31489999.7711182
2021	39259998.3215332
2022	51409999.8474121