Year current US$ 2009 12390000.3433228 2010 18760000.2288818 2011 22959999.084472697 2012 22809999.4659424 2013 24600000.3814697 2014 19579999.9237061 2015 13600000.3814697 2016 13300000.1907349 2017 15409999.8474121 2018 15800000.1907349 2019 16120000.839233398 2020 15960000.038146999 2021 17329999.9237061 2022 13920000.076293899