Year National currency (Billions) 2011 6231.925 2012 7396.896 2013 8700.573 2014 10404.010 2015 11899.456 2016 13897.799 2017 16063.612 2018 18660.163 2019 20822.491 2020 24388.649 2021 26988.019 2022 27623.111 2023 27786.282 2024 29076.642 2025 30606.610 2026 32078.493 2027 33469.061 2028 34766.754 2029 36029.435