Year current US$ 2005 0 2006 0 2007 0 2008 280000.003054738 2009 309999.99679625 2010 549999.989569187 2011 630000.004544854 2012 489999.996498227 2013 320000.00216066797 2014 159999.99642372102 2015 179999.995976686 2016 89999.9979883432 2017 129999.998956919 2018 59999.9986588955 2019 70000.0002980232 2020 50000.0007450581 2021 810000.009834766 2022 1999999.9944120632