Year current US$ 1991 129999.995231628 1992 70000.0002980232 1993 70000.0002980232 1994 100000.00149011599 1995 100000.00149011599 1996 150000.005960464 2000 29999.999329447703 2001 19999.9995529652 2002 79999.9982118607 2003 39999.9991059303 2004 59999.9986588955 2005 100000.00149011599 2006 340000.00357627904 2007 839999.973773956 2008 1350000.02384186 2009 2309999.94277954 2010 6860000.1335144 2011 5820000.17166138 2012 7110000.1335144 2013 12479999.5422363 2014 16459999.0844727 2015 20930000.3051758 2016 18270000.4577637 2017 16520000.4577637 2018 26090000.1525879 2019 21530000.6866455 2020 12930000.3051758 2021 25969999.3133545 2022 23299999.237060502