Year constant 2010 US$ 1995 8555.08192180901 1996 9165.08156109171 1997 9848.08477094 1998 9977.88817151655 1999 9792.49611368803 2000 10283.5766039451 2001 11062.9912887443 2002 11663.9512460197 2003 12106.7748021572 2004 12778.7335820685 2005 13221.4262109276 2006 13829.6349677143 2007 14606.2529500646 2008 14796.1170627123 2009 13661.6917823321 2010 13546.9535307254 2011 13556.8952893979 2012 13251.6833979967 2013 13352.8894422531 2014 13401.6743540315 2015 14025.5935602584 2016 14244.3396840049 2017 15056.7918352015 2018 15483.3847158623