Year annual % 2012 5.614036324200583 2013 7.579646018582935 2014 7.259585783685111 2015 7.317726719718024 2016 6.575224904300185 2017 6.342551802269753 2018 4.157611500455943 2019 5.346849948807986 2020 3.3191301288746757 2021 2.9783554533522363 2022 2.7492181486349523 2023 4.050655642318745