Year	including construction (constant 2015 US$)
1996	203725301420.46603
1997	205408713931.3936
1998	208036882013.0298
1999	209670960644.99496
2000	216526523811.23175
2001	223146874725.27606
2002	231091955159.5603
2003	243799238249.06848
2004	262252637729.69516
2005	277683533482.1599
2006	306365655634.0545
2007	328936171571.803
2008	347719284235.7535
2009	326118626806.572
2010	340223092973.41296
2011	359766574503.89514
2012	350314074517.9249
2013	342603472199.3536
2014	364193265516.22784
2015	383472095246.3832
2016	390424900686.75275
2017	404762370345.3282
2018	422717656984.7949
2019	434246506116.6082
2020	408975876383.81024
2021	422961107589.10364
2022	434814802053.1828
2023	438059522845.19073
