Year constant 2010 US$ 1997 72798.8814236264 1998 73691.8304597887 1999 74743.0457245647 2000 75727.1328567086 2001 76179.4562316273 2002 76478.0495612153 2003 76829.7199423699 2004 77467.0113112078 2005 78067.1140132955 2006 78609.2635115906 2007 79096.57964463 2008 78408.565492992 2009 77179.1775505229 2010 78172.0096731726 2011 78937.6254099255 2012 79243.9320453558 2013 79472.4351414791 2014 79876.3411055362 2015 80352.1440245619 2016 80257.9314319809 2017 81468.5101386859