Year Percent Change 2015-01-01 4.2416 2016-01-01 4.5629 2017-01-01 4.8636 2018-01-01 5.5857 2019-01-01 5.5425 2020-01-01 5.6530 2021-01-01 5.6414 2022-01-01 5.6294 2023-01-01 5.6343