Year Index (Units) 2011 135.443 2012 169.628 2013 154.723 2014 170.010 2015 356.777 2016 1790.066 2017 4536.453 2018 5961.274 2019 7750.776 2020 14548.902 2021 14902.967 2022 12961.137 2023 22067.483 2024 35369.734 2025 38588.431 2026 41568.804 2027 44857.643 2028 48654.936 2029 52563.629