| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | HARRIS ASSOCIATES L.P. | 5,007,400 | 5.09 | $147,818,448 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 4,547,872 | 4.62 | $134,253,181 | 30-Sep-09 | | MAIRS & POWER INC | 3,481,326 | 3.54 | $102,768,743 | 30-Sep-09 | | COLUMBIA WANGER ASSET MANAGEMENT, L.P. | 3,357,700 | 3.41 | $99,119,304 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 3,230,418 | 3.28 | $95,361,939 | 30-Sep-09 | | Invesco Ltd. | 2,946,233 | 3.00 | $86,972,798 | 30-Sep-09 | | MORGAN STANLEY | 2,446,565 | 2.49 | $72,222,598 | 30-Sep-09 | | STATE STREET CORPORATION | 2,380,467 | 2.42 | $70,271,385 | 30-Sep-09 | | Pictet Asset Management Ltd | 2,311,100 | 2.35 | $68,223,672 | 30-Sep-09 | | WELLINGTON MANAGEMENT COMPANY, LLP | 10,810,436 | 10.99 | $319,124,070 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | OAKMARK EQUITY AND INCOME FUND | 3,908,300 | 3.97 | $100,130,646 | 30-Jun-09 | | VANGUARD/WINDSOR FUND INC. | 3,424,000 | 3.48 | $93,543,680 | 31-Jul-09 | | MAIRS & POWER GROWTH FUND INC | 2,320,000 | 2.36 | $68,486,400 | 30-Sep-09 | | COLUMBIA ACORN FD | 2,300,000 | 2.34 | $58,926,000 | 30-Jun-09 | | AMERICAN MUTUAL FUND INC | 1,800,000 | 1.83 | $53,136,000 | 30-Sep-09 | | Powershares Exhg Traded Fd-Powershares Water Resources | 1,521,559 | 1.55 | $41,568,991 | 31-Jul-09 | | COLLEGE RETIREMENT EQUITIES FUND-STOCK ACCOUNT | 1,344,480 | 1.37 | $34,445,577 | 30-Jun-09 | | HARTFORD DIVIDEND AND GROWTH HLS FUND, INC. | 1,220,000 | 1.24 | $31,256,400 | 30-Jun-09 | | AIM DIVERSIFIED DIVIDEND FUND | 1,152,506 | 1.17 | $34,021,977 | 30-Sep-09 | | VANGUARD MID-CAP INDEX FUND | 983,337 | 1.00 | $25,193,093 | 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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1.48% Nasdaq 
Major Holders
