Year current international $ 2000 143.24855426716204 2001 152.11260894841226 2002 159.3325822540092 2003 170.06993045841816 2004 178.47195001375076 2005 189.84319296152773 2006 201.4416262149875 2007 209.36784420903467 2008 218.1797335114864 2009 226.72012592275084 2010 230.39011804704828 2011 237.92420155066537 2012 250.1044301556512 2013 263.57069649380907 2014 266.567713618925 2015 272.6577458292431 2016 282.35710844152806 2017 285.1545822903668 2018 296.31342789328573 2019 307.7554225175513 2020 304.66875763344495 2021 328.8217555646917