Year current US$ 2010 4954339000 2011 4805010000 2012 4712275000 2013 4722829000 2014 4741651000 2015 4861152000 2016 5088853000 2017 5326429000 2018 5341037000 2019 5581028000 2020 5007623000 2021 5267574000 2022 5569720000