Year including construction (constant 2015 US$) 1990 7543785958.641174 1991 7575458014.62215 1992 6939928118.198387 1993 6127055690.215485 1994 5063320721.72537 1995 4382753679.630327 1996 4530569036.34529 1997 5344450043.682798 1998 5923877308.495909 1999 6372355186.106411 2000 6743025508.680283 2001 7066672786.855468 2002 7559315953.272415 2003 8361934331.427625 2004 9936464978.047169 2005 11283299468.778694 2006 12879024017.98295 2007 14076799232.898666 2008 16264778181.143982 2009 16314181502.025944 2010 18285603617.76869 2011 19610121265.225998 2012 20009608225.539333 2013 19625317404.089767 2014 19920138187.363342 2015 18456623418.70113 2016 17595034431.1008 2017 18221146767.429005 2018 17452653200.09905 2019 17701820354.352108 2020 17636562290.142975 2021 18179162558.28746 2022 17073289362.49727 2023 18459863504.406616