Type	Name	Date
Underwriting agreement	Underwriting Agreement	08/08/2012
Underwriting agreement	Underwriting Agreement	07/13/2012
Underwriting agreement	Underwriting Agreement	03/14/2012
Underwriting agreement	Underwriting Agreement	02/08/2012
Underwriting agreement	Underwriting Agreement	01/13/2012
Underwriting agreement	Underwriting Agreement	12/13/2011
Underwriting agreement	Underwriting Agreement	06/02/2011
Underwriting agreement	Underwriting Agreement	04/11/2011
Underwriting agreement	Underwriting Agreement	02/03/2011
Underwriting agreement	Underwriting Agreement	01/21/2011
Underwriting agreement	Underwriting Agreement	12/17/2010