Year Percent Change 2015-01-01 5.0077 2016-01-01 4.4689 2017-01-01 3.1125 2018-01-01 4.0402 2019-01-01 4.5000 2020-01-01 4.7000 2021-01-01 4.8000 2022-01-01 4.9000 2023-01-01 5.0000