| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | BlackRock Group Limited | 16,561,860 | 8.58 | $26,830,213 | 30-Sep-09 | | WELLINGTON MANAGEMENT COMPANY, LLP | 10,149,275 | 5.26 | $16,441,825 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 4,295,280 | 2.23 | $6,958,353 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 2,991,418 | 1.55 | $4,846,097 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 2,307,682 | 1.20 | $3,738,444 | 30-Sep-09 | | Harvest Capital Strategies LLC | 2,046,700 | 1.06 | $3,315,654 | 30-Sep-09 | | NORTHERN TRUST CORPORATION | 972,686 | .50 | $554,431 | 30-Jun-09 | | O'Shaughnessy Asset Management LLC | 938,812 | .49 | $1,520,875 | 30-Sep-09 | | TIAA-CREF INVESTMENT MANAGEMENT, LLC | 769,765 | .40 | $1,247,019 | 30-Sep-09 | | CALPERS (CALIFORNIA-PUBLIC EMPLOYEES RETIREMENT SYSTEM) | 715,650 | .37 | $407,920 | 30-Jun-09 |
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| Holder | Shares | % Out | Value* | Reported | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 1,661,217 | .86 | $946,893 | 30-Jun-09 | | DFA U.S. SMALL CAP VALUE SERIES | 1,295,329 | .67 | $764,244 | 30-Apr-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 1,088,611 | .56 | $620,508 | 30-Jun-09 | | Vantagepoint Discovery Fund | 800,000 | .41 | $456,000 | 30-Jun-09 | | COLLEGE RETIREMENT EQUITIES FUND-SOCIAL CHOICE ACCOUNT | 769,765 | .40 | $438,766 | 30-Jun-09 | | Market Vectors ETF Tr-Enviromental Services ETF | 687,167 | .36 | $391,685 | 30-Jun-09 | | SEI INSTITUTIONAL INVESTMENT TR-SMALL/MID CAP EQUITY FUN | 518,800 | .27 | $274,964 | 31-May-09 | | Blackrock EcoSolutions Investment Trust (BQR) | 500,000 | .26 | $240,000 | 31-Jul-09 | | SEI INSTITUTIONAL MANAGED TR-SMALL CAP GROWTH FUND | 431,000 | .22 | $245,670 | 30-Jun-09 | | Vanguard Energy Index Fund | 404,700 | .21 | $214,491 | 31-May-09 |
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Value shown is computed using the security's price on the report date given.
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