Year Percent Change 2010-01-01 15.7296 2011-01-01 17.6492 2012-01-01 18.5288 2013-01-01 18.4995 2014-01-01 19.7565 2015-01-01 20.9798 2016-01-01 21.6439 2017-01-01 22.9753 2018-01-01 24.0214 2019-01-01 24.8229 2020-01-01 25.6705 2021-01-01 26.6780 2022-01-01 27.9064 2023-01-01 29.3326