Year Percent Change 2010-01-01 8.0818 2011-01-01 6.9909 2012-01-01 4.9741 2013-01-01 4.4626 2014-01-01 3.4204 2015-01-01 2.7217 2016-01-01 2.5567 2017-01-01 4.4599 2018-01-01 3.7856 2019-01-01 3.6051 2020-01-01 3.8055 2021-01-01 3.8813 2022-01-01 3.8486 2023-01-01 3.8382