| | Aug 1, 2006 | Dec 31, 2007 | 517 days | 0 | - |
|
| Jul 1, 2005 | Jun 30, 2006 | 364 days | 0 | - |
|
| Jul 1, 2004 | Jun 30, 2005 | 364 days | 2 | 0.00 |
| | Jan 1, 2000 | Dec 31, 2000 | 365 days | 0 | - |
| | Jul 1, 1998 | Jun 30, 1999 | 364 days | 2 | 0.00 |
| | Jul 1, 1996 | Dec 31, 1996 | 183 days | 2 | 0.50 |
| | Jul 1, 1996 | Jun 30, 1997 | 364 days | 0 | - |
| | Jan 1, 1996 | Jun 30, 1996 | 181 days | 0 | - |
| | Jan 1, 1995 | Dec 31, 1995 | 364 days | 0 | - |
| | Jul 1, 1994 | Oct 15, 1994 | 106 days | 0 | - |
|
| Jul 1, 1994 | Jun 30, 1995 | 364 days | 2 | 0.00 |
| | Jul 1, 1992 | Jun 30, 1993 | 364 days | 0 | - |
| | Jan 1, 1992 | Jul 30, 1992 | 211 days | 0 | - |
|
| Jan 1, 1991 | Dec 31, 1991 | 364 days | 45 | 1.82 |
|
| Jan 1, 1987 | Dec 31, 1990 | 1460 days | 44 | 1.18 |