Year	constant 2015 US$
2000	33416324738.47773
2001	34316158159.667427
2002	35607236433.11188
2003	37057383364.6421
2004	38584345846.62199
2005	41069927676.56228
2006	42235452661.15082
2007	43454164970.79033
2008	45705989919.13426
2009	43738529422.400085
2010	47050163911.042465
2011	48807379877.19235
2012	51578516360.23762
2013	53939877503.51058
2014	58063814647.864845
2015	61068601786.174225
2016	65246840133.12456
2017	70488405523.37845
2018	74114972302.31862
2019	76922166392.4888
2020	69397611710.05896
2021	75561757663.45921
2022	79231680159.95334
2023	80295883210.90022