Year Percent Change 2015-01-01 8.2251 2016-01-01 -6.4844 2017-01-01 2.9211 2018-01-01 3.3696 2019-01-01 3.1812 2020-01-01 3.1060 2021-01-01 3.0073 2022-01-01 2.9306 2023-01-01 2.8404