| Type | Filed | |
|---|---|---|
| DEF 14A | 2019-10-18 | EDGAR |
| DEF 14A | 2019-04-22 | EDGAR |
| DEF 14A | 2018-04-18 | EDGAR |
| DEF 14A | 2017-04-26 | EDGAR |
| DEF 14A | 2016-04-14 | EDGAR |
| DEF 14A | 2015-04-20 | EDGAR |
| DEF 14A | 2014-04-16 | EDGAR |
| DEF 14A | 2013-04-25 | EDGAR |
| DEF 14A | 2012-04-20 | EDGAR |
| DEF 14A | 2011-04-22 | EDGAR |
| DEF 14A | 2010-04-20 | EDGAR |
| DEF 14A | 2009-04-21 | EDGAR |
| DEF 14A | 2008-04-17 | EDGAR |