Year constant 2015 US$ 1994 4534384401.798017 1995 4695118453.068523 1996 4819158232.395667 1997 5213612371.561624 1998 5353630939.549658 1999 5359315668.566413 2000 5587054832.056295 2001 5896133457.844093 2002 6619428166.144884 2003 7640238184.083227 2004 8267225816.565939 2005 9400680898.124357 2006 10810340221.655254 2007 12664102585.696964 2008 14004973498.48376 2009 11682103053.013988 2010 11914903926.536499 2011 11923295371.112442 2012 12323992278.264458 2013 12374446601.6182 2014 12479695625.02857 2015 11794196283.006165 2016 11402125815.236397 2017 12698805853.018215 2018 13857731355.65035 2019 14708640006.435865 2020 13369507106.291594 2021 14053726466.83056 2022 14899066574.980583 2023 16195095052.76386