Securities and Exchange Commission

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum

The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

Compare To Other Companies

Annual (pure)

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
0.0033	2013-03-08	10-K	2012	FY	2011-01-01	2011-12-31	CY2011
0.0033	2014-03-06	10-K	2013	FY	2012-01-01	2012-12-31	CY2012
0.00328	2015-03-06	10-K	2014	FY	2013-01-01	2013-12-31	CY2013
0.0028	2016-03-11	10-K	2015	FY	2014-01-01	2014-12-31	CY2014
0.00252	2017-03-10	10-K	2016	FY	2015-01-01	2015-12-31	CY2015
0.0026	2018-03-15	10-K	2017	FY	2016-01-01	2016-12-31	CY2016
0.00277	2019-03-15	10-K	2018	FY	2017-01-01	2017-12-31	CY2017
0.0032	2020-03-13	10-K	2019	FY	2018-01-01	2018-12-31	CY2018
0.00375	2021-03-31	10-K	2020	FY	2019-01-01	2019-12-31	CY2019
0.00375	2022-03-30	10-K	2021	FY	2020-01-01	2020-12-31	CY2020
0.00415	2023-03-10	10-K	2022	FY	2021-01-01	2021-12-31	CY2021

All Reported Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum (pure)

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
0.0033	2013-03-08	10-K	2012	FY	2011-01-01	2011-12-31	CY2011
0.0033	2013-03-08	10-K	2012	FY	2012-01-01	2012-12-31
0.0033	2014-03-06	10-K	2013	FY	2012-01-01	2012-12-31	CY2012
0.0033	2014-03-06	10-K	2013	FY	2013-01-01	2013-12-31
0.00328	2015-03-06	10-K	2014	FY	2013-01-01	2013-12-31	CY2013
0.00282	2015-03-06	10-K	2014	FY	2014-01-01	2014-12-31
0.0028	2016-03-11	10-K	2015	FY	2014-01-01	2014-12-31	CY2014
0.0025	2016-03-11	10-K	2015	FY	2015-01-01	2015-12-31
0.00252	2017-03-10	10-K	2016	FY	2015-01-01	2015-12-31	CY2015
0.00258	2017-03-10	10-K	2016	FY	2016-01-01	2016-12-31
0.0026	2018-03-15	10-K	2017	FY	2016-01-01	2016-12-31	CY2016
0.0028	2018-03-15	10-K	2017	FY	2017-01-01	2017-12-31
0.00277	2019-03-15	10-K	2018	FY	2017-01-01	2017-12-31	CY2017
0.00316	2019-03-15	10-K	2018	FY	2018-01-01	2018-12-31
0.0032	2020-03-13	10-K	2019	FY	2018-01-01	2018-12-31	CY2018
0.0038	2020-03-13	10-K	2019	FY	2019-01-01	2019-12-31
0.00375	2021-03-31	10-K	2020	FY	2019-01-01	2019-12-31	CY2019
0.00384	2021-03-31	10-K	2020	FY	2020-01-01	2020-12-31
0.00375	2022-03-30	10-K	2021	FY	2020-01-01	2020-12-31	CY2020
0.00415	2022-03-30	10-K	2021	FY	2021-01-01	2021-12-31
0.00415	2023-03-10	10-K	2022	FY	2021-01-01	2021-12-31	CY2021