Year Percent Change 2010-01-01 3.0973 2011-01-01 3.6750 2012-01-01 2.4421 2013-01-01 1.9836 2014-01-01 3.7418 2015-01-01 6.8606 2016-01-01 5.8143 2017-01-01 4.1267 2018-01-01 3.3926 2019-01-01 2.9902 2020-01-01 3.0416 2021-01-01 3.0416 2022-01-01 3.0416 2023-01-01 3.0416