Year Percent Change 2010-01-01 4.4015 2011-01-01 3.8187 2012-01-01 3.5683 2013-01-01 3.9740 2014-01-01 4.0813 2015-01-01 2.1308 2016-01-01 3.3603 2017-01-01 6.7730 2018-01-01 3.5624 2019-01-01 2.9562 2020-01-01 3.0000 2021-01-01 3.0000 2022-01-01 3.0000 2023-01-01 3.0000