Year including construction (constant 2010 US$) 1981 252074292985.583 1982 241027418881.346 1983 224797935318.048 1984 234198643228.979 1985 236447645452.634 1986 232768066248.467 1987 235950740918.838 1988 244593407658.824 1989 247404541205.823 1990 259094354684.133 1991 251333565657.521 1992 252994815983.175 1993 246203610146.37 1994 243881165466.292 1995 244288267342.24 1996 253599805450.429 1997 260080984751.803 1998 261808002045.679 1999 259719933360.095 2000 273991539611.626 2001 282611686233.451 2002 291210071479.284 2003 306627361958.066 2004 320412114366.131 2005 338571133349.99 2006 348325100565.623 2007 366120537815.181 2008 372463047729.926 2009 370648170790.364 2010 389090116977.414 2011 405413725073.907 2012 412404303829.263 2013 428768568915.951 2014 445380517329.096 2015 452170674645.317 2016 448554046479.827 2017 460605265961.644 2018 511505585629.889