Year	constant 2015 US$
1995	11547388864.52525
1996	12072691147.64662
1997	13762147261.775839
1998	15092515192.467758
1999	16016310311.188278
2000	16748251635.595572
2001	17516343425.845543
2002	18784420001.252987
2003	20360530908.505096
2004	21592972532.734287
2005	22735492647.651096
2006	24268844477.45966
2007	25764313139.35901
2008	24885145838.74057
2009	20475709056.411266
2010	22361658596.833523
2011	22501871425.630745
2012	22218574637.7525
2013	21740699703.758068
2014	23283527695.488354
2015	25304316540.32381
2016	25379506502.107704
2017	26205951688.40003
2018	26928645968.514233
2019	27400975539.903168
2020	25231038278.75382
2021	27246947634.09199
2022	28646161832.225044
2023	27503963913.973495