Year including construction (constant 2015 US$) 1969 90374248569.30109 1970 93140609264.1382 1971 93990210993.54405 1972 95522980861.68468 1973 99013888978.5124 1974 100807197992.16826 1975 95836240731.22374 1976 99355075287.5085 1977 98708705253.3042 1978 97048949415.80577 1979 96081075831.28506 1980 95566200826.82608 1981 91364996981.0878 1982 86999777173.2671 1983 88475941912.75383 1984 92692843146.86867 1985 95767237905.52998 1986 95582650464.94247 1987 97377625966.96005 1988 101984518763.1038 1989 105966023523.31787 1990 107928066147.86708 1991 109764125802.71161 1992 109760878258.48074 1993 108887761512.87099 1994 112605237709.52881 1995 114824373332.55498 1996 117258448230.80458 1997 117836207097.36551 1998 122018419410.95497 1999 126774750279.31122 2000 131474937576.37605 2001 134532776183.68349 2002 133956780333.10576 2003 131788104246.83232 2004 135447101347.56396 2005 138172595354.10068 2006 140944037617.97684 2007 147029526096.35068 2008 150017725017.56512 2009 138167643598.06982 2010 140311302387.68546 2011 142641007627.33975 2012 139300462916.4753 2013 139339802915.0382 2014 138954945069.15424 2015 139227225080.07806 2016 142435936359.76556 2017 149051331523.24057 2018 153306275735.34918 2019 154872293266.77026 2020 151627913366.67496 2021 162497286356.5308 2022 167104838203.3316 2023 163736542356.04684