Retirement Plans and Employee Stock Purchase Plans (Tables)

12 Months Ended

Dec. 31, 2021

Retirement Plans and Employee Stock Purchase Plans

Schedule of purchases made under the 2009 Employee Stock Purchase Plans

	Year ended December 31,
	2021		2020		2019
Number of shares purchased		63,962		65,512		65,148
Average price of shares purchased	$	39.70	$	42.45	$	48.58