Year current US$ 2009 6219999.79019165 2010 4739999.771118159 2011 5119999.88555908 2012 4989999.771118159 2013 7000000 2014 5670000.07629395 2015 3390000.10490417 2016 1090000.0333786 2017 1809999.9427795399 2018 -1590000.0333786 2022 239999.994635582