| Type | Filed | |
|---|---|---|
| DEF 14A | 2013-04-24 | EDGAR |
| DEF 14A | 2012-04-19 | EDGAR |
| DEF 14A | 2011-04-20 | EDGAR |
| DEF 14A | 2010-04-16 | EDGAR |
| DEF 14A | 2009-04-30 | EDGAR |
| DEF 14A | 2008-04-29 | EDGAR |
| DEF 14A | 2007-04-27 | EDGAR |
| DEF 14A | 2006-04-27 | EDGAR |
| DEF 14A | 2005-05-02 | EDGAR |
| DEF 14A | 2004-04-29 | EDGAR |
| DEF 14A | 2003-05-02 | EDGAR |
| DEF 14A | 2002-04-12 | EDGAR |
| DEF 14A | 2001-04-20 | EDGAR |