Year constant 2010 US$ 1992 3820.27112547106 1993 3332.28183130105 1994 2900.6162234263 1995 2838.87149178358 1996 3157.66292314889 1997 3316.51827840289 1998 3354.89966529403 1999 3573.48322079044 2000 3963.120390244 2001 3979.35266879716 2002 4192.54408063601 2003 4468.25335621741 2004 4966.52489703046 2005 5425.83974978817 2006 5935.24558975163 2007 6595.10955382802 2008 6875.97421294423 2009 6155.77360353998 2010 6640.67054591441 2011 7149.47218230156 2012 7385.50756911727 2013 7587.97482747776 2014 7711.44980138387 2015 7675.00616697997 2016 7668.3315251484 2017 7915.0020965332