| Type | Filed | |
|---|---|---|
| DEF 14A | 2018-04-18 | EDGAR |
| DEF 14A | 2017-04-19 | EDGAR |
| DEF 14A | 2016-04-12 | EDGAR |
| DEF 14A | 2015-04-21 | EDGAR |
| DEF 14A | 2014-04-28 | EDGAR |
| DEF 14A | 2013-08-07 | EDGAR |
| DEF 14A | 2013-04-24 | EDGAR |
| DEF 14A | 2012-06-22 | EDGAR |
| DEF 14A | 2011-04-29 | EDGAR |
| DEF 14A | 2010-04-29 | EDGAR |
| DEF 14A | 2009-04-28 | EDGAR |
| DEF 14A | 2008-04-29 | EDGAR |
| DEF 14A | 2007-04-30 | EDGAR |
| DEF 14A | 2006-04-24 | EDGAR |
| DEF 14A | 2005-04-22 | EDGAR |
| DEF 14A | 2004-04-23 | EDGAR |
| DEF 14A | 2003-05-09 | EDGAR |
| DEF 14A | 2002-04-30 | EDGAR |
| DEF 14A | 2001-04-30 | EDGAR |
| DEF 14A | 2000-04-25 | EDGAR |