Year including construction (constant 2010 US$) 1994 11676662568159.9 1995 12045797528564.1 1996 12405786960995.3 1997 12767363538203.8 1998 12962780353107.8 1999 13312569835286.9 2000 13987787765316.5 2001 13978324566420.1 2002 14180369718576.2 2003 14683536999776 2004 15515541587173.9 2005 16094451373424.6 2006 16953333100827.6 2007 17764041989849.2 2008 17950693426329.2 2009 17075469899587.9 2010 18230491379546.4 2011 18907005208103 2012 19319807398052.6 2013 19836514261365.9 2014 20472161602348.1 2015 21073517845586.9 2016 21691368607919 2017 22524681606985.7 2018 23365455174239.7