Year	current US$
1995	6063650884.198516
1996	6513508167.4323635
1997	7117984514.880232
1998	8032008816.8712015
1999	8272726399.231323
2000	8592895712.63036
2001	9229320573.09156
2002	10524890859.481583
2003	13245618005.165417
2004	16645951606.608559
2005	19434286247.66646
2006	26022679959.869576
2007	36970237997.53796
2008	40393943867.855576
2009	26935002780.09452
2010	24456374354.05117
2011	29103795231.855083
2012	29674437716.145187
2013	31523980019.42524
2014	32319028434.34812
2015	27739813841.26366
2016	27998354903.76427
2017	30689092810.90123
2018	34671754463.05723
2019	34465496822.98034
2020	33942006708.613323
2021	40686194519.507095
2022	42276628892.79588
2023	45307115830.21845