Year Percent 2010-01-01 0.0023 2011-01-01 0.0022 2012-01-01 0.0022 2013-01-01 0.0021 2014-01-01 0.0021 2015-01-01 0.0020 2016-01-01 0.0020 2017-01-01 0.0020 2018-01-01 0.0020 2019-01-01 0.0019 2020-01-01 0.0019 2021-01-01 0.0019 2022-01-01 0.0018 2023-01-01 0.0018