| WAMU MORTGAGE PASS THROUGH CERTIFICATES SERIES 2003-AR4 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERTIFICATES SERIES 2003-AR5 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERTIFICATES SERIES 2003-AR6 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERTIFICATES SERIES 2003-AR7 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERTIFICATES SERIES 2003-S2 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERTIFICATES SERIES 2003 S3 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERTIFICATES SERIES 2003 S4 | Dec 31 |
| WAMU MORTGAGE PASS-THROUGH CERTIFICATES SERIES 2003-S7 | Dec 31 |
| WAMU MORTGAGE PASS-THROUGH CERTIFICATES SERIES 2004-AR1 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2004-AR10 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2004-AR11 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2004-AR12 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2004-AR13 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2004-AR14 | Dec 31 |
| WAMU Mortgage Pass-Through Certificates Series 2004-AR2 | Dec 31 |
| WAMU MORTGAGE PASS-THROUGH CERTIFICATES SERIES 2004 AR-3 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates Series 2004-AR4 | Dec 31 |
| WAMU MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 2004-AR5 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates Series 2004-AR6 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2004-AR7 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2004-AR8 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2004-AR9 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates Series 2004-CB1 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2004-CB2 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2004-CB3 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2004-CB4 | Dec 31 |
| WAMU MORTGAGE PASS-THROUGH CERTIFICATES SERIES 2004-RS2 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates Series 2004-S2 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2004-S3 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR1 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR10 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR11 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR12 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR13 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR14 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR15 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR16 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR17 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR18 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR19 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR2 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR3 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR4 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR5 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR6 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR7 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR8 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2005-AR9 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR1 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR10 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR11 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR12 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR13 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR14 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR15 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR16 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR17 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR18 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR19 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR2 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR3 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR4 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR5 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR6 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR7 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR8 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2006-AR9 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2007-HY1 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2007-HY2 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2007-HY3 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2007-HY4 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2007-HY5 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2007-HY6 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2007-HY7 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2007-OA1 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2007-OA2 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2007-OA3 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2007-OA4 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2007-OA5 | Dec 31 |
| WaMu Mortgage Pass-Through Certificates, Series 2007-OA6 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERT SER 2002-AR19 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERT SER 2003-S1 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERT SERIES 2001-5 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERT SERIES 2001-S8 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERT SERIES 2002-S8 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERTS SER 2003-AR10 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERTS SER 2003-S10 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERTS SER 2003-S11 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERTS SER 2003-S9 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERTS SERIES 2003-S5 | Dec 31 |
| WAMU MORTGAGE PASS THROUGH CERTS SERIES 2004-S1 | Dec 31 |
| WAMU MORTGAGE PASS THRU CERTIFICATE SERIES 2001-AR6 | Dec 31 |
| WAMU MORTGAGE PASS THRU CERTIFICATES SERIES 2002-MS8 | Dec 31 |
| WAMU MORTGAGE PASS THRU CERTIFICATES SERIES 2002-MS9 | Dec 31 |
| WAMU MORTGAGE PASS-THRU CERT SERIES 2003-AR2 | Dec 31 |
| WAMU MORTGAGE PASS THRU CERTS SERIES 2002-ARS | Dec 31 |
| WASHINGTON MORTGAGE SEC CORP MORT PASS THR CERT SER 2002-MS5 | Dec 31 |
| Washington Mutual Asset-Backed Certificates, WMABS Series 2006-HE1 | Dec 31 |
| Washington Mutual Asset-Backed Certificates, WMABS Series 2006-HE2 | Dec 31 |
| Washington Mutual Asset-Backed Certificates, WMABS Series 2006-HE3 | Dec 31 |