Year	current US$
1970	32109999.17984009
1992	101680000.30517581
1993	100110000.61035159
1994	106480003.35693361
1995	119260002.1362305
1996	99500000
1997	117779998.7792969
1998	123000000
1999	126000000
2000	126470001.2207032
2001	126559997.5585937
2002	129100002.28881839
2003	139809997.5585938
2004	147069999.6948242
2005	143669998.1689453
2006	142959999.0844727
2007	150819999.6948242
2008	176340003.9672849
2009	185030006.40869159
2010	203910003.66210908
2011	210849998.474121
2012	244850326.53808638
2013	205115516.6625972
2014	264452835.08300817
2015	282574783.32519597
2016	256797599.79248098
2017	331200286.865234
2018	274248336.7919924
2019	267611953.73535162
2020	279529716.4917
2021	262270805.35888648
2022	318213600.15869105