XBRL Filings

For the Quarter Ended September 30, 2011

 XBRL Instance Document
 XBRL Taxonomy Extension Schema
 XBRL Taxonomy Extension Calculation Linkbase
 XBRL Taxonomy Extension Definition Linkbase
 XBRL Taxonomy Extension Label Linkbase
 XBRL Taxonomy Extension Presentation Linkbase

For the Quarter Ended June 30, 2011

 XBRL Instance Document
 XBRL Taxonomy Extension Schema
 XBRL Taxonomy Extension Calculation Linkbase
 XBRL Taxonomy Extension Definition Linkbase
 XBRL Taxonomy Extension Label Linkbase
 XBRL Taxonomy Extension Presentation Linkbase

For the Quarter Ended March 31, 2011

 XBRL Instance Document
 XBRL Taxonomy Extension Schema
 XBRL Taxonomy Extension Calculation Linkbase
 XBRL Taxonomy Extension Definition Linkbase
 XBRL Taxonomy Extension Label Linkbase
 XBRL Taxonomy Extension Presentation Linkbase

For the Year Ended December 31, 2010

 XBRL Instance Document
 XBRL Taxonomy Extension Schema
 XBRL Taxonomy Extension Calculation Linkbase
 XBRL Taxonomy Extension Definition Linkbase
 XBRL Taxonomy Extension Label Linkbase
 XBRL Taxonomy Extension Presentation Linkbase

For the Quarter Ended September 30, 2010

 XBRL Instance Document
 XBRL Taxonomy Extension Schema
 XBRL Taxonomy Extension Calculation Linkbase
 XBRL Taxonomy Extension Definition Linkbase
 XBRL Taxonomy Extension Label Linkbase
 XBRL Taxonomy Extension Presentation Linkbase

For the Quarter Ended June 30, 2010

 XBRL Instance Document
 XBRL Taxonomy Extension Schema
 XBRL Taxonomy Extension Calculation Linkbase
 XBRL Taxonomy Extension Definition Linkbase
 XBRL Taxonomy Extension Label Linkbase
 XBRL Taxonomy Extension Presentation Linkbase