| Filed On | Filing |
|---|---|
| 18 Mar 2002 | SC 13D/A |
| 28 Feb 2002 | SC 13D/A |
| 13 Jun 2001 | SC 13D/A |
| 17 May 2001 | SC 13D/A |
| 30 Oct 2000 | SC 13D/A |
| 30 Jun 2000 | SC 13D/A |
| 07 Jun 2000 | SC 13D/A |
| 17 Jun 1999 | SC 13D/A |
| 15 Jun 1999 | SC 13D/A |
| 04 Jun 1999 | SC 13D/A |
| 14 Feb 1997 | SC 13D/A |
| 30 Jan 1997 | SC 13D/A |
| 13 Feb 1996 | SC 13D/A |
| 31 Oct 1995 | SC 13D/A |
| 08 Sep 1995 | SC 13D/A |
| 10 Jul 1995 | SC 13D/A |
| 25 May 1995 | SC 13D/A |
| 01 May 1995 | SC 13D/A |
| 23 Jan 1995 | SC 13D/A |
| 09 Jan 1995 | SC 13D/A |
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