2022

• March 4, 2022
• January 28, 2022

2021

• December 17, 2021
• September 7, 2021
• May 14, 2021
• March 12, 2021
• January 11, 2021

2020

• September 23, 2020
• June 24, 2020
• January 31, 2020

2019

• December 6, 2019
• September 19, 2019
• August 9, 2019
• March 1, 2019
• January 25, 2019

2018

• December 7, 2018
• September 6, 2018 (Annual Meeting)
• August 3, 2018
• May 4, 2018
• March 2, 2018

2017

• August 4, 2017
• May 5, 2017
• March 17, 2017
• January 27, 2017

2016

• September 8, 2016 (Annual Meeting)
• May 6, 2016
• March 4, 2016

2015

• August 7, 2015
• September 4, 2015 (Annual Meeting)
• September 3, 2015
• May 1, 2015
• March 9, 2015
• January 9, 2015

2014

• December 5, 2014
• August 8, 2014
• May 9, 2014
• March 7, 2014
• January 10, 2014