Year current US$ 2000 851.5655814975429 2001 884.7685908374038 2002 962.9583315053104 2003 1084.3543261809823 2004 1175.1750340100357 2005 1240.3421002292396 2006 1313.7855052976008 2007 1413.436589868496 2008 1480.839807711744 2009 1482.1424755923815 2010 1526.1873577245346 2011 1610.9361453372385 2012 1637.5026872286326 2013 1653.9816371566853 2014 1684.4615103167093 2015 1649.066382493103 2016 1701.358153200522 2017 1769.6895036112219 2018 1845.7096375006245 2019 1881.0136683622318 2020 1850.716942492428 2021 2004.405376319026