Year	current US$
1995	3962436407.7381516
1996	3942638446.249869
1997	3860387370.296279
1998	4484778419.120537
1999	3991201924.4091735
2000	3820165509.0882225
2001	3908714097.638303
2002	4577272417.80375
2003	5796767596.098265
2004	6612365114.569429
2005	7077992744.409637
2006	7931401425.357092
2007	9250955032.54251
2008	10657343411.256329
2009	9076918581.377476
2010	8917844596.045698
2011	9195826367.535229
2012	9068528042.696487
2013	9881317210.191843
2014	9915387875.317678
2015	8704217985.658606
2016	8976228548.27855
2017	9696680377.455261
2018	10917148475.328907
2019	10962280242.170218
2020	9564053806.783072
2021	11956691657.116364
2022	11536493490.35663
2023	13427604499.504225