Liquidity Contract

Situation of liquidity contract at December 31, 2011 - 01/09/12

Situation of liquidity contract at June 30, 2011 - 07/06/11

Situation of liquidity contract at December 31, 2010 - 01/07/11

Situation of liquidity contract at June 30, 2010 - 07/05/10

Situation of liquidity contract December 31, 2009 - 01/12/10