3M Company
Abbott Laboratories
ADM
Advance Auto Parts, Inc.
Advanced Micro Devices, Inc.
Aetna Inc.
Affiliated Computer Services, Inc.
Aflac Incorporated
AGCO Corporation
Agilent Technologies, Inc.
Air Products and Chemicals, Inc.
AK Steel Holding Corporation
Albertson's, Inc.
Alcoa Inc.
Allied Waste Industries, Inc.
ALLTEL Corporation
Altria Group, Inc.
Amazon.com, Inc.
Ameren Corporation
American Electric Power Company, Inc.
American Express Company
American Family Insurance Group
American Financial Group, Inc.
American International Group, Inc.
American Standard Companies Inc.
AmerisourceBergen Corporation
Amgen Inc.
AMR Corporation
Anadarko Petroleum Corporation
Anheuser-Busch Companies, Inc.
Aon Corporation
Apache Corporation
Apple Computer, Inc.
Applied Materials, Inc.
ARAMARK Corporation
Arrow Electronics, Inc.
ArvinMeritor, Inc.
Asbury Automotive Group, Inc.
Ashland Inc.
Assurant, Inc.
AT&T Inc.
Atmos Energy Corporation
Autoliv, Inc.
Automatic Data Processing, Inc.
AutoNation, Inc.
Auto-Owners Insurance Group
AutoZone, Inc.
Avaya Inc.
Avery Dennison Corporation
Avnet, Inc.
Avon Products, Inc.
Baker Hughes Incorporated
Ball Corporation
Bank of America Corporation
Barnes & Noble, Inc.
Baxter International Inc.
BB&T Corporation
Beazer Homes USA, Inc.
Becton, Dickinson and Company
Bed Bath & Beyond Inc.
BellSouth Corporation
Berkshire Hathaway Inc.
Best Buy Co., Inc.
Big Lots, Inc.
BJ's Wholesale Club, Inc.
Blockbuster Inc.
BlueLinx Holdings Inc.
Borders Group, Inc.
BorgWarner Inc.
Boston Scientific Corporation
Bristol-Myers Squibb Company
Brunswick Corporation
Burlington Northern Santa Fe Corporation
C.H. Robinson Worldwide, Inc.
Cablevision Systems Corporation
Calpine Corporation
Campbell Soup Company
Capital One Financial Corporation
Cardinal Health, Inc.
Caremark Rx, Inc.
CarMax, Inc.
Caterpillar Inc.
CBS Corporation
CDW Corporation
Celanese Corporation
Cendant Corporation
CenterPoint Energy, Inc.
Centex Corporation
Charter Communications, Inc.
Chesapeake Energy Corporation
Chevron Corporation
CHS Inc.
CIGNA Corporation
Circuit City Stores, Inc.
Cisco Systems, Inc.
CIT Group Inc.
Citigroup Inc.
Clear Channel Communications, Inc.
CMS Energy Corporation
Coca-Cola Enterprises Inc.
Colgate-Palmolive Company
Comcast Corporation
Commercial Metals Company
Computer Sciences Corporation
ConAgra Foods, Inc.
ConocoPhillips
Conseco, Inc.
Consolidated Edison, Inc.
Constellation Brands, Inc.
Constellation Energy Group, Inc.
Continental Airlines, Inc.
Con-way Inc.
Corning Incorporated
Costco Wholesale Corporation
Countrywide Financial Corporation
Coventry Health Care, Inc.
Cox Communications, Inc.
Crown Holdings, Inc.
CSX Corporation
Cummins, Inc.
CVS Corporation
D.R. Horton, Inc.
Dana Corporation
Danaher Corporation
Darden Restaurants, Inc.
Dean Foods Company
Deere & Company
Dell Inc.
Delphi Corporation
Delta Air Lines, Inc.
Devon Energy Corporation
Dillard's, Inc.
Dole Food Company, Inc.
Dollar General Corporation
Dominion Resources, Inc.
Dover Corporation
DTE Energy Company
Duke Energy Corporation
Dynegy Inc.
E. I. du Pont de Nemours and Company
Eastman Chemical Company
Eastman Kodak Company
Eaton Corporation
eBay Inc.
EchoStar Communications Corporation
Ecolab Inc.
Edison International
El Paso Corporation
Electronic Data Systems Corporation
Eli Lilly and Company
EMC Corporation
EMCOR Group, Inc.
Emerson Electric Co.
Enbridge Energy Partners, L.P.
Energy East Corporation
Energy Transfer Partners, L.P.
Engelhard Corporation
Entergy Corporation
Enterprise Products Partners L.P.
Erie Insurance Group
Exelon Corporation
Express Scripts, Inc.
Exxon Mobil Corporation
Family Dollar Stores, Inc.
Federal-Mogul Corporation
Federated Department Stores, Inc.
FedEx Corporation
Fidelity National Financial, Inc.
Fifth Third Bancorp
First Data Corporation
FirstEnergy Corp.
Fiserv, Inc.
Fisher Scientific International Inc.
Fluor Corporation
Foot Locker, Inc.
Ford Motor Company
Fortune Brands, Inc.
FPL Group, Inc.
Franklin Resources, Inc.
Freeport-McMoRan Copper & Gold Inc.
Freescale Semiconductor, Inc.
Frontier Oil Corporation
Gannett Co., Inc.
Gap Inc.
General Dynamics Corporation
General Electric Company
General Mills, Inc.
General Motors Corporation
Genuine Parts Company
Genworth Financial, Inc.
Golden West Financial Corporation
Goodrich Corporation
Google Inc.
Graybar Electric Company, Inc.
Group 1 Automotive, Inc.
H&R Block, Inc.
H. J. Heinz Company
Halliburton Company
Harley-Davidson, Inc.
Harrah's Entertainment, Inc.
HCA Inc.
Health Net, Inc.
Henry Schein, Inc.
Hess Corporation
Hewlett-Packard Company
Hexion Specialty Chemicals, Inc.
Hilton Hotels Corporation
Honeywell International Inc.
Hormel Foods Corporation
Hovnanian Enterprises, Inc.
Hughes Supply, Inc.
Humana Inc.
Huntsman Corporation
IAC/InterActiveCorp
IKON Office Solutions, Inc.
Illinois Tool Works Inc.
Ingram Micro Inc.
Intel Corporation
International Business Machines Corporation
International Paper Company
ITT Industries, Inc.
J. C. Penney Company, Inc.
Jabil Circuit, Inc.
Jacobs Engineering Group Inc.
Johnson & Johnson
Johnson Controls, Inc.
Jones Apparel Group, Inc.
JPMorgan Chase & Co.
KB Home
Kellogg Company
Kelly Services, Inc.
Kerr-McGee Corporation
KeyCorp
KeySpan Corporation
Kimberly-Clark Corporation
Kinder Morgan Energy Partners, L.P.
Kindred Healthcare, Inc.
Kohl's Corporation
L-3 Communications Holdings, Inc.
Land O'Lakes, Inc.
LandAmerica Financial Group, Inc.
Lear Corporation
Leggett & Platt, Incorporated
Lehman Brothers Holdings Inc.
Lennar Corporation
Levi Strauss & Co.
Lexmark International, Inc.
Liberty Global, Inc.
Liberty Media Holding Corporation
Liberty Mutual Holding Company Inc.
Limited Brands, Inc.
Lincoln National Corporation
Liz Claiborne, Inc.
Lockheed Martin Corporation
Loews Corporation
Longs Drug Stores Corporation
Lowe's Companies, Inc.
Lucent Technologies Inc.
Lyondell Chemical Company
M.D.C. Holdings, Inc.
Manpower Inc.
Marathon Oil Corporation
Marriott International, Inc.
Marsh & McLennan Companies, Inc.
Marshall & Ilsley Corporation
Masco Corporation
Massachusetts Mutual Life Insurance Company
Mattel, Inc.
McDonald's Corporation
McKesson Corporation
MeadWestvaco Corporation
Medco Health Solutions, Inc.
Medtronic, Inc.
Mellon Financial Corporation
Merck & Co., Inc.
Merrill Lynch & Co., Inc.
MetLife, Inc.
MGM MIRAGE
Micron Technology, Inc.
Microsoft Corporation
Mirant Corporation
Mohawk Industries, Inc.
Molson Coors Brewing Company
Monsanto Company
Morgan Stanley
Motorola, Inc.
Murphy Oil Corporation
Nash-Finch Company
National City Corporation
National Oilwell Varco, Inc.
Nationwide Mutual Insurance Company
Navistar International Corporation
NCR Corporation
New York Life Insurance Company
Newell Rubbermaid Inc.
Newmont Mining Corporation
News Corporation
NIKE, Inc.
NiSource Inc.
Nordstrom, Inc.
Norfolk Southern Corporation
Northeast Utilities
Northrop Grumman Corporation
Northwest Airlines Corporation
Nucor Corporation
NVR, Inc.
Occidental Petroleum Corporation
Office Depot, Inc.
OfficeMax Incorporated
OGE Energy Corp.
Omnicare, Inc.
Omnicom Group Inc.
ONEOK, Inc.
Oracle Corporation
Owens & Minor, Inc.
Owens Corning
Owens-Illinois, Inc.
PACCAR Inc
Pacific Mutual Holding Company
Parker Hannifin Corporation
Pathmark Stores, Inc.
Peabody Energy Corporation
Pepco Holdings, Inc.
PepsiCo, Inc.
Performance Food Group Company
Peter Kiewit Sons', Inc.
Pfizer Inc
PG&E Corporation
Phelps Dodge Corporation
Pilgrim's Pride Corporation
Pitney Bowes Inc.
Plains All American Pipeline, L.P.
PPG Industries, Inc.
PPL Corporation
Praxair, Inc.
Principal Financial Group, Inc.
Progress Energy, Inc.
Prudential Financial, Inc.
Public Service Enterprise Group Incorporated
Publix Super Markets, Inc.
Pulte Homes, Inc.
QUALCOMM Incorporated
Quest Diagnostics Incorporated
Qwest Communications International Inc.
R.R. Donnelley & Sons Company
RadioShack Corporation
Raytheon Company
Regions Financial Corporation
Reliant Energy, Inc.
Reynolds American Inc.
Rite Aid Corporation
Rockwell Automation, Inc.
Rohm and Haas Company
Ross Stores, Inc.
Ryder System, Inc.
Ryerson, Inc.
Ryland Group Ltd.
Safeco Corporation
Safeway Inc.
Saks Incorporated
Sanmina-SCI Corporation
Sara Lee Corporation
SCANA Corporation
Schering-Plough Corporation
Science Applications International Corporation
Sealed Air Corporation
Sears Holdings Corporation
Sempra Energy
SLM Corporation
Smith International, Inc.
Smithfield Foods, Inc.
Smurfit-Stone Container Corporation
Solectron Corporation
Sonic Automotive, Inc.
Southern Company
Southwest Airlines Co.
Sprint Nextel Corporation
SPX Corporation
Standard Pacific Corp.
Staples, Inc.
Starbucks Corporation
Starwood Hotels & Resorts Worldwide, Inc.
State Farm Mutual Automobile Insurance Company
State Street Corporation
Stryker Corporation
Sun Microsystems, Inc.
SunGard Data Systems Inc.
Sunoco, Inc.
SunTrust Banks, Inc.
SUPERVALU INC.
SYSCO Corporation
Target Corporation
Teachers Insurance and Annuity Association - College Retirement Equities Fund
Tech Data Corporation
Temple-Inland Inc.
Tenet Healthcare Corporation
Tenneco Inc.
TEPPCO Partners, L.P.
Terex Corporation
Tesoro Corporation
Texas Instruments Incorporated
Textron Inc.
The AES Corporation
The Allstate Corporation
The Bank of New York Company, Inc.
The Bear Stearns Companies Inc.
The Black & Decker Corporation
The Boeing Company
The Brink's Company
The Charles Schwab Corporation
The Chubb Corporation
The Clorox Company
The Coca-Cola Company
The DIRECTV Group, Inc.
The Dow Chemical Company
The Estée Lauder Companies Inc.
The First American Corporation
The Goldman Sachs Group, Inc.
The Goodyear Tire & Rubber Company
The Guardian Life Insurance Company of America
The Hartford Financial Services Group, Inc.
The Hershey Company
The Home Depot, Inc.
The Interpublic Group of Companies, Inc.
The Kroger Co.
The Lubrizol Corporation
The McGraw-Hill Companies, Inc.
The Mosaic Company
The Mutual of Omaha Companies
The Northwestern Mutual Life Insurance Company
The Pepsi Bottling Group, Inc.
The PNC Financial Services Group, Inc.
The Procter & Gamble Company
The Progressive Corporation
The ServiceMaster Company
The Sherwin-Williams Company
The St. Paul Travelers Companies, Inc.
The Timken Company
The TJX Companies, Inc.
The Walt Disney Company
The Williams Companies, Inc.
Thrivent Financial for Lutherans
Time Warner Inc.
Toll Brothers, Inc.
Toys ''R'' Us, Inc.
TransMontaigne Inc.
Triad Hospitals, Inc.
Tribune Company
TRW Automotive Holdings Corp.
TXU Corp.
Tyson Foods, Inc.
U.S. Bancorp
UAL Corporation
UGI Corporation
Union Pacific Corporation
Unisys Corporation
United Auto Group, Inc.
United Parcel Service, Inc.
United States Steel Corporation
United Stationers Inc.
United Technologies Corporation
UnitedHealth Group Incorporated
Universal Health Services, Inc.
UnumProvident Corporation
US Airways Group, Inc.
USAA
USG Corporation
Valero Energy Corporation
Verizon Communications Inc.
VF Corporation
Viacom Inc.
Visteon Corporation
W. R. Berkley Corporation
W.W. Grainger, Inc.
Wachovia Corporation
Walgreen Co.
Wal-Mart Stores, Inc.
Washington Mutual, Inc.
Waste Management, Inc.
WellPoint, Inc.
Wells Fargo & Company
WESCO International, Inc.
Western & Southern Financial Group
Weyerhaeuser Company
Whirlpool Corporation
Whole Foods Market, Inc.
Winn-Dixie Stores, Inc.
Wm. Wrigley Jr. Company
World Fuel Services Corporation
WPS Resources Corporation
Wyeth
Xcel Energy Inc.
Xerox Corporation
Yahoo! Inc.
YRC Worldwide Inc.
YUM! Brands, Inc.