Quarter	Percent
2016-03-31	49.6
2016-06-30	51
2016-09-30	52.2
2016-12-31	52.9
2017-03-31	53.4
2017-06-30	54.3
2017-09-30	54.9
2017-12-31	54.7
2018-03-31	55.1
2018-06-30	56.6
2018-09-30	58.9
2018-12-31	59.3
2019-03-31	59.4
2019-06-30	59.6
2019-09-30	60.8
2019-12-31	61.6
2020-03-31	61.7
2020-06-30	62.5
2020-09-30	62.8
2020-12-31	63.4
2021-03-31	64.4
2021-06-30	65.4
2021-09-30	66.8
2021-12-31	67.4
2022-03-31	65.6
2022-06-30	65.5
2022-09-30	63.6
2022-12-31	58.8
2023-03-31	53
2023-06-30	46.3
2023-09-30	41
2023-12-31	37.4