| Filed On | Filing |
|---|---|
| 17 May 2024 | 424B3 |
| 07 Oct 2022 | 424B3 |
| 16 Sep 2022 | 424B3 |
| 06 Jan 2022 | 424B3 |
| 01 Oct 2021 | 424B3 |
| 24 Jan 2020 | 424B3 |
| 26 Dec 2018 | 424B3 |
| 11 Apr 2018 | 424B3 |
| 15 Dec 2008 | 424(B)(3) |
| 21 Sep 2007 | PROSPECTUS SUPPLEMENT - 5% PREFERRED STOCK |
| 21 Sep 2007 | PROSPECTUS SUPPLEMENT - 2.75% CONVERTIBLE NOTES |
| 02 Aug 2007 | PROPECTUS SUPPLEMENT - 2.75% CONVERTIBLE NOTES |
| 02 Aug 2007 | PROSPECTUS SUPPLEMENT - 5% (2005B) PREFERRED STOCK |
| 13 Jun 2007 | PROSPECTUS SUPPLEMENT |
| 01 Jun 2007 | PROSPECTUS SUPPLEMENT |
| 09 May 2007 | 424B3 |
| 12 Feb 2007 | 424B3 |
| 27 Nov 2006 | SUPPLEMENT NO. 4_2.75% CONTINGENT CONV SR NOTES |
| 16 Nov 2006 | 424B3 |
| 31 Aug 2006 | 2.75% SR NOTES_SUPPL NO. 3 TO PROSPECTUS |
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