自社株取引日	役員・従業員名	役員・従業員の役職	株式の種類	売却／購入	株数	株価
2012-02-02	GAMCO, INVESTORS, INC. ET AL	10% Owner	普通株式	売却	300	$40.88
2012-02-02	BYRNE, SUSAN M	Director, Co-Chief Investment Officer	普通株式	売却	3,000	$40.33
2012-02-01	GAMCO, INVESTORS, INC. ET AL	10% Owner	普通株式	売却	1,700	$40.50
2012-02-01	BYRNE, SUSAN M	Director, Co-Chief Investment Officer	普通株式	売却	6,556	$40.32
2012-01-31	BYRNE, SUSAN M	Director, Co-Chief Investment Officer	普通株式	売却	2,203	$40.24
2012-01-31	GAMCO, INVESTORS, INC. ET AL	10% Owner	普通株式	売却	300	$40.18
2012-01-27	GAMCO, INVESTORS, INC. ET AL	10% Owner	普通株式	売却	800	$40.07
2012-01-26	GAMCO, INVESTORS, INC. ET AL	10% Owner	普通株式	売却	200	$40.12
2012-01-20	BYRNE, SUSAN M	Director, Co-Chief Investment Officer	普通株式	売却	1,537	$40.01
2012-01-19	BYRNE, SUSAN M	Director, Co-Chief Investment Officer	普通株式	売却	4	$40.25
2012-01-18	GAMCO, INVESTORS, INC. ET AL	10% Owner	普通株式	売却	1,500	$0.00
2012-01-18	GAMCO, INVESTORS, INC. ET AL	10% Owner	普通株式	売却	2,100	$40.24
2012-01-18	BYRNE, SUSAN M	Director, Co-Chief Investment Officer	普通株式	売却	4,999	$40.18
2012-01-17	GAMCO, INVESTORS, INC. ET AL	10% Owner	普通株式	売却	4,200	$39.28
2012-01-13	GAMCO, INVESTORS, INC. ET AL	10% Owner	普通株式	売却	1,700	$38.16
2012-01-12	GAMCO, INVESTORS, INC. ET AL	10% Owner	普通株式	売却	1,000	$37.65
2012-01-04	HARDCASTLE, WILLIAM R JR	Chief Financial Officer	普通株式	購入	100	$0.00
2012-01-04	HARDCASTLE, WILLIAM R JR	Chief Financial Officer	普通株式	売却	300	$0.00