Year Percent Change 2015-01-01 2.1884 2016-01-01 4.0037 2017-01-01 6.5354 2018-01-01 4.8490 2019-01-01 4.7500 2020-01-01 4.8500 2021-01-01 4.9000 2022-01-01 4.9000 2023-01-01 4.9000