| Passive ownership stake (update) | SC 13G/A | 2003-02-14 | - |
| Employee stock plan | S-8 | 2003-02-13 | - |
| Passive ownership stake (update) | SC 13G/A | 2003-02-13 | - |
| Insider trade | 4 | 2003-02-11 | 2003-02-10 |
| Insider trade | 4 | 2002-12-10 | 2002-12-06 |
| Employee stock plan | S-8 | 2002-12-10 | - |
| Quarterly report | 10-Q | 2002-11-14 | 2002-09-30 |
| Major company event (amended) | 8-K/A | 2002-10-11 | 2002-07-29 |
| Major company event | 8-K | 2002-08-13 | 2002-08-13 |
| Quarterly report | 10-Q | 2002-08-13 | 2002-06-30 |
| Major company event | 8-K | 2002-08-13 | 2002-07-29 |
| Major company event | 8-K | 2002-07-18 | 2002-07-18 |
| Proxy statement | DEF 14A | 2002-07-12 | 2002-08-13 |
| Employee plan annual report | 11-K | 2002-07-11 | 2001-12-30 |
| Major company event | 8-K | 2002-07-05 | 2002-07-02 |
| PRER14A | - | 2002-07-05 | - |
| PRE 14A | - | 2002-07-01 | 2002-08-07 |
| NT 11-K | - | 2002-06-28 | 2001-12-30 |
| Quarterly report | 10-Q | 2002-05-15 | 2002-03-31 |
| Proxy statement | DEF 14A | 2002-04-15 | 2002-05-14 |
| Prospectus supplement | 424B2 | 2002-04-10 | - |
| PRE 14A | - | 2002-04-04 | 2002-05-14 |
| Prospectus supplement | 424B2 | 2002-03-27 | - |
| Major company event | 8-K | 2002-03-27 | 2002-03-19 |
| Securities registration | S-3 | 2002-03-19 | - |
| 10-K405 | - | 2002-03-19 | 2001-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2002-02-14 | - |
| Passive ownership stake | SC 13G | 2002-02-13 | - |
| Passive ownership stake | SC 13G | 2002-01-28 | - |
| Quarterly report | 10-Q | 2001-11-13 | 2001-09-30 |
| Passive ownership stake (update) | SC 13G/A | 2001-09-13 | - |
| Quarterly report | 10-Q | 2001-08-14 | 2001-06-30 |
| Passive ownership stake (update) | SC 13G/A | 2001-07-19 | - |
| Employee plan annual report | 11-K | 2001-06-28 | 2000-12-30 |
| Passive ownership stake | SC 13G | 2001-06-26 | - |
| Quarterly report | 10-Q | 2001-05-15 | 2001-03-31 |
| Proxy statement | DEF 14A | 2001-04-16 | 2001-05-15 |
| Annual report | 10-K | 2001-04-02 | 2000-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2001-02-08 | - |
| Passive ownership stake (update) | SC 13G/A | 2001-01-30 | - |
| Employee stock plan | S-8 | 2001-01-23 | - |
| Major company event | 8-K | 2000-11-30 | 2000-11-29 |
| Major company event | 8-K | 2000-11-17 | 2000-11-17 |
| Quarterly report (amended) | 10-Q/A | 2000-11-16 | 2000-09-30 |
| Quarterly report | 10-Q | 2000-11-14 | 2000-09-30 |
| Major company event | 8-K | 2000-10-26 | 2000-10-25 |
| Quarterly report | 10-Q | 2000-08-14 | 2000-06-30 |
| 424B1 | - | 2000-08-03 | - |
| S-3/A | - | 2000-08-02 | - |
| Major company event (amended) | 8-K/A | 2000-07-31 | 2000-07-13 |
