Year including construction (constant 2015 US$) 1961 481569645.968315 1962 379177877.95919484 1963 271239891.8685266 1964 390544755.10642415 1965 536526040.6454949 1966 585516467.0161281 1967 623795575.1695217 1968 702696092.8902935 1969 709841372.688133 1970 778017404.6415248 1971 823579906.9983667 1972 742659534.6242052 1973 719315682.4868952 1974 829869815.8530806 1975 749725855.3222938 1976 837936222.7586335 1977 746442684.3455173 1978 778438486.8667039 1979 861214253.8110608 1980 805183818.1809756 1981 804808818.16708 1982 772155113.9504253 1983 727480793.3110546 1984 972044682.0787085 1985 1012113430.9776103 1986 1100277783.534491 1987 1070407135.7164769 1988 1080144741.7691596 1989 1213641319.0007794 1990 1132385425.6014993 1991 1126398091.5221066 1992 1120442414.9327328 1993 1191588348.8359265 1994 1257098601.8409064 1995 1271176354.094746 1996 1299275901.558246 1997 1364325628.758169 1998 1373846339.2334204 1999 1274832620.2155664 2000 1080935285.2732255 2001 993574582.5033664 2002 1018023534.5227796 2003 1051795778.6745564 2004 1143762381.77374 2005 1272597055.5978987 2006 1748230835.1935208 2007 1526753112.1963353 2008 1373109762.4973218 2009 1300932699.0010893 2010 1223252037.202947 2011 1253195526.3797631 2012 1260605482.0415118 2013 1357084317.0711203 2014 1355069687.5518265 2015 1402746349.8740125 2016 1403932522.1445987 2017 1298041439.110524 2018 1288510433.287174 2019 1289062631.0560377 2020 1310040258.0868201 2021 1195561596.7221296 2022 1283669085.3805747 2023 1277523367.3542225