Year	current US$
2005	349999.99403953605
2006	469999.998807907
2007	589999.973773956
2008	409999.99642372096
2009	460000.00834465
2010	90000.0035762787
2011	109999.999403954
2012	234947.606921196
2013	259451.985359192
2014	301102.310419083
2015	373075.991868973
2016	304222.40495681803
2017	98800.003528595
2018	76043.002307415