Year	constant 2015 US$
1995	21207996311.049133
1996	22536482726.882763
1997	24160772639.453983
1998	24967954422.065506
1999	22614934047.596558
2000	24001639533.716236
2001	25652658257.163704
2002	27289401825.22193
2003	28486794470.34169
2004	31058638373.6818
2005	32776288886.943623
2006	34450432939.37194
2007	36668877372.02228
2008	38742713828.07458
2009	37684358972.41489
2010	37959848425.84315
2011	38732815970.38178
2012	38468835418.70718
2013	39581599083.0007
2014	38952445480.793945
2015	39655949731.381615
2016	40979898020.819046
2017	41840952822.73897
2018	43721754402.16871
2019	45615664899.159256
2020	45203655774.19834
2021	48696066612.490364
2022	49937794675.51316
2023	51200118921.335686