Year Percent Change 2015-01-01 2.2411 2016-01-01 2.3970 2017-01-01 3.6185 2018-01-01 2.9424 2019-01-01 2.6977 2020-01-01 2.6378 2021-01-01 2.6150 2022-01-01 2.6229 2023-01-01 2.6270