Year	current US$
1990	1906250000
1991	1647222222.2222223
1992	1638437499.9999998
1993	1535265151.5151515
1994	1317734265.7342656
1995	1245946502.0576131
1996	1500511578.865154
1997	1218545297.4218636
1998	1452467399.8882833
1999	969857397.2760701
2000	899667205.9550854
2001	988617902.9611205
2002	1084322744.3452845
2003	1495094450.1391127
2004	1681714834.8686216
2005	2080012492.008097
2006	2696021956.0729113
2007	3326732367.6112533
2008	4756441302.202359
2009	3671406010.818358
2010	4055816322.1638656
2011	5169090493.671092
2012	6327767190.016083
2013	7128233606.5530615
2014	7169289972.437872
2015	6046860893.844799
2016	5641203874.482139
2017	6322533275.459181
2018	6822485717.672433
2019	7246816416.069449
2020	6320767534.88569
2021	7910191373.141438
2022	10761962858.390722