Year current US$ 1996 19999.9995529652 1997 140000.000596046 1998 700000.006705523 1999 359999.99567866296 2000 380000.01013279 2001 450000.012293458 2002 179999.999701977 2003 469999.996945262 2004 679999.992251396 2005 1960000.00648201 2006 1610000.01057982 2007 4770000.00886619 2008 7519999.87103045 2009 3719999.98576939 2010 4190000.0013411 2011 1819999.96118248 2012 1259999.98487532 2013 359999.999403954 2014 459999.995306134 2015 259999.996051192 2016 139999.996870756 2017 129999.998956919 2018 0 2019 0 2020 29999.999329447703 2021 149999.99664723902 2022 0