| Date Filed | Type | Description | Filer | View |
| 04/23/13 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | |  |
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| 04/20/12 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/19/11 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/20/10 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/07/10 | PRE 14A | A preliminary proxy statement providing notification matters to be brought to a vote | | |
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| 04/21/09 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/23/08 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/26/07 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/26/06 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/29/05 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/23/04 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/04/03 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/22/02 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/19/01 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/09/01 | PRE 14A | A preliminary proxy statement providing notification matters to be brought to a vote | | |
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| 04/27/00 | DEFA14A | Additional proxy soliciting materials - definitive | | |
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| 04/13/00 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/12/99 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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| 04/12/99 | DEFR14A | DEFR14A | | |
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| 04/02/98 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | | |
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