| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | VANGUARD GROUP, INC. (THE) | 5,385,065 | 4.98 | $139,527,034 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 5,229,164 | 4.83 | $135,487,639 | 30-Sep-09 | | STATE STREET CORPORATION | 4,289,345 | 3.96 | $111,136,928 | 30-Sep-09 | | MAIRS & POWER INC | 3,194,648 | 2.95 | $82,773,329 | 30-Sep-09 | | FRANKLIN RESOURCES, INC | 3,151,814 | 2.91 | $81,663,500 | 30-Sep-09 | | U.S. BANCORP (MINNESOTA) | 3,043,636 | 2.81 | $78,860,608 | 30-Sep-09 | | Bank of New York Mellon Corporation | 2,740,328 | 2.53 | $71,001,898 | 30-Sep-09 | | Allianz Global Investors of America L.P. | 2,703,207 | 2.50 | $70,040,093 | 30-Sep-09 | | Aronson, Johnson & Ortiz | 2,388,800 | 2.21 | $61,893,808 | 30-Sep-09 | | NATIONAL RURAL ELECTRIC COOPERATIVE ASSOCIATION | 2,202,900 | 2.04 | $57,077,139 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | Allianz Fds-NFJ Small Cap Value Fd | 2,308,600 | 2.13 | $59,815,826 | 30-Sep-09 | | MAIRS & POWER GROWTH FUND INC | 2,199,000 | 2.03 | $56,976,090 | 30-Sep-09 | | FRANKLIN MANAGED TRUST - RISING DIVIDENDS FUND | 1,516,389 | 1.40 | $39,289,638 | 30-Sep-09 | | FRANKLIN TEMPLETON VAR INS PR-FRNKL RISING DIVIDENDS SEC | 1,231,300 | 1.14 | $31,902,983 | 30-Sep-09 | | SMALLCAP WORLD FUND | 1,225,000 | 1.13 | $31,739,750 | 30-Sep-09 | | VANGUARD GROWTH AND INCOME FUND | 1,199,600 | 1.11 | $31,081,636 | 30-Sep-09 | | VANGUARD MID-CAP INDEX FUND | 1,153,709 | 1.07 | $29,892,600 | 30-Sep-09 | | VANGUARD 500 INDEX FUND | 1,032,445 | .95 | $26,750,649 | 30-Sep-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 923,192 | .85 | $23,264,438 | 30-Jun-09 | | PACIFIC SELECT FUND-MID CAP EQUITY PORTFOLIO | 896,400 | .83 | $23,225,724 | 30-Sep-09 |
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Value shown is computed using the security's price on the report date given.
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