12/31/2009 12/31/2008 01/01/2008
Cash and banks 138,994 124,789 61,729
Banking deposit certificates 98,106 252,901 4,449
Fixed-income investment funds 778,505 359,190 503,428
1,015,605 736,880 569,606


Bank deposit certificates (CDBs) earn an average of 101.5% of the CDI interbank rate (9.84% in 2009). CDBs are issued by first-line banks with daily liquidity, guaranteed buyback, floating interest rates based on the CDI rate, have daily valuation, are registered with the Cetip clearing corporation and have immediate and total access.

Fixed-income investment funds are represented by shares in exclusive investment funds whose assets are mainly CDBs and government bonds which have immediate and total access.