Year Percent Change 2015-01-01 1.9105 2016-01-01 2.0353 2017-01-01 1.9079 2018-01-01 1.7997 2019-01-01 1.6626 2020-01-01 1.6243 2021-01-01 1.5169 2022-01-01 1.5169 2023-01-01 1.5169