Year	constant 2015 US$
1995	20983314564.293858
1996	21373646604.320175
1997	23907440971.833134
1998	23605845621.96899
1999	22913550765.72134
2000	23938316467.08614
2001	25209141058.485077
2002	27607971423.721336
2003	28868910593.17192
2004	30196603266.145725
2005	31580493549.92251
2006	31991950689.38775
2007	33601304660.89801
2008	34641850113.224464
2009	31555241332.864388
2010	31070657722.618378
2011	31379308271.21059
2012	30626942096.31125
2013	30142175529.536552
2014	29395062947.475166
2015	29505466505.86315
2016	30439387356.361374
2017	31405892331.913544
2018	32465028120.274227
2019	33789579355.31401
2020	32042925218.59922
2021	35435001614.32233
2022	37791921509.54115
2023	38926779124.478966