| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Invesco Ltd. | 11,539,431 | 5.55 | $22,155,707 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 10,106,489 | 4.86 | $19,404,458 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 9,078,331 | 4.37 | $17,430,395 | 30-Sep-09 | | Ameriprise Financial, Inc. | 3,544,677 | 1.71 | $6,805,779 | 30-Sep-09 | | STATE STREET CORPORATION | 3,502,901 | 1.69 | $6,725,569 | 30-Sep-09 | | MAZAMA CAPITAL MANAGEMENT, INC | 3,047,730 | 1.47 | $5,851,641 | 30-Sep-09 | | I.G. INVESTMENT MANAGEMENT, LTD | 2,500,000 | 1.20 | $4,800,000 | 30-Sep-09 | | Claymore Advisors, LLC | 2,421,863 | 1.17 | $4,649,976 | 30-Sep-09 | | FMR LLC | 2,146,259 | 1.03 | $4,120,817 | 30-Sep-09 | | NORTHERN TRUST CORPORATION | 2,093,098 | 1.01 | $4,542,022 | 30-Jun-09 |
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| Holder | Shares | % Out | Value* | Reported | | Powershares Exhg Traded Fd Tr-POWERSHARES WILDERHILL CLEAN E | 9,531,604 | 4.59 | $20,016,368 | 31-Jul-09 | | ISHARES RUSSELL 2000 INDEX FD | 2,759,121 | 1.33 | $5,297,512 | 30-Sep-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 2,465,421 | 1.19 | $5,349,963 | 30-Jun-09 | | VANGUARD SMALL-CAP INDEX FUND | 2,336,305 | 1.12 | $5,069,781 | 30-Jun-09 | | Claymore ETF Tr 2-Claymore/MAC Gobal Solar Energy Index ETF | 2,281,943 | 1.10 | $3,856,483 | 31-Aug-09 | | RiverSource Mid Cap Growth Fund | 2,236,254 | 1.08 | $3,779,269 | 31-Aug-09 | | RiverSource VP Mid Cap Growth Fd | 1,604,061 | .77 | $3,480,812 | 30-Jun-09 | | VANGUARD SMALL-CAP GROWTH INDEX FUND | 1,480,762 | .71 | $3,213,253 | 30-Jun-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 1,076,340 | .52 | $2,335,657 | 30-Jun-09 | | COLLEGE RETIREMENT EQUITIES FUND-STOCK ACCOUNT | 969,106 | .47 | $2,102,960 | 30-Jun-09 |
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Value shown is computed using the security's price on the report date given.
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