Year including construction (constant 2015 US$) 1976 289063386.15587264 1977 312645607.2820182 1978 334408457.0586629 1979 340719783.3241619 1980 309653790.914195 1981 325814686.9947425 1982 338899756.3845117 1983 341197498.74252903 1984 375692336.983326 1985 428536090.8329336 1986 505336614.1146188 1987 572493119.9344808 1988 624014326.2244434 1989 662704165.3563218 1990 717539029.7295289 1991 755150919.4820632 1992 807825675.4072121 1993 845416218.9243311 1994 884197473.284028 1995 924988452.155962 1996 982495552.870976 1997 1030852250.8613601 1998 1099392182.4840155 1999 1137742931.2104723 2000 1222484697.821108 2001 1277168570.1281095 2002 1247198984.2391794 2003 1289782703.324391 2004 1299901438.250915 2005 1254308546.4470043 2006 1943161305.6062474 2007 2046715739.1898918 2008 2154600902.693698 2009 2218249787.2154365 2010 2279055796.029729 2011 2274961102.1232643 2012 2290628179.262873 2013 2317525003.5654864 2014 2314628968.502305 2015 2304580864.71345 2016 2326186478.719643 2017 2405211535.7991366 2018 2480940328.075249 2019 2549833425.7490797 2020 2048106505.8495555 2021 2270902426.2115335 2022 2424481462.0757785 2023 2678419170.482603