Year current international $ 2000 122.42710121711498 2001 112.67273817393632 2002 115.50437042087897 2003 114.9373591622027 2004 121.07977911097494 2005 137.58879430861302 2006 141.37651410248858 2007 144.9267141444306 2008 132.8661422270277 2009 129.79698472243103 2010 133.73092652010672 2011 131.75608726141326 2012 137.58572897463395 2013 143.5059459403571 2014 159.86021273147554 2015 175.65632323244188 2016 180.21189163822197 2017 188.92904336235253 2018 218.15317681950594 2019 234.92731288132495 2020 235.04714790942774 2021 237.91782194175872