Year	current US$
1992	18440081611.570248
1993	8871031903.890526
1994	7876550644.345418
1995	7940652377.862465
1996	7418919357.233022
1997	7739646727.423364
1998	6716763895.6058235
1999	7163702504.84899
2000	10353710624.65692
2001	10166980821.923708
2002	11576895508.572277
2003	14928755904.036985
2004	22654791781.526814
2005	30386570590.006023
2006	41291961258.83064
2007	51704450816.4296
2008	76257078322.08015
2009	48243335559.57573
2010	65502334498.32039
2011	89503237237.78052
2012	91747467851.45444
2013	91381274045.89023
2014	87108795075.83353
2015	52581502969.22135
2016	43714755377.60112
2017	54041327348.840866
2018	67477058329.90648
2019	66197682052.42857
2020	52229576023.303345
2021	66318146545.904915
2022	94215246053.04619