Year Percent Change 2015-01-01 7.2696 2016-01-01 7.0231 2017-01-01 6.8300 2018-01-01 6.8100 2019-01-01 7.0168 2020-01-01 6.9989 2021-01-01 6.9100 2022-01-01 6.8264 2023-01-01 6.7984