Year Percent Change 2015-01-01 2.1044 2016-01-01 2.0758 2017-01-01 3.7994 2018-01-01 3.1675 2019-01-01 2.4086 2020-01-01 2.3019 2021-01-01 2.4653 2022-01-01 2.5257 2023-01-01 2.5202