| | Jan 1, 2013 | Jun 30, 2015 | 910 days | 63 | 0.51 |
|
| Jul 1, 2012 | Dec 31, 2012 | 183 days | 19 | 0.42 |
| | Mar 17, 2009 | Dec 31, 2009 | 289 days | 0 | - |
| | Jan 1, 2002 | Dec 31, 2003 | 729 days | 3 | 2.00 |
| | Jan 1, 2001 | Dec 31, 2001 | 364 days | 0 | - |
| | Aug 4, 2000 | Oct 5, 2000 | 62 days | 0 | - |
| | Jan 1, 1998 | Dec 31, 1998 | 364 days | 0 | - |
| | Jan 1, 1996 | Dec 31, 1996 | 365 days | 0 | - |
| | Jan 1, 1995 | Dec 31, 1995 | 364 days | 0 | - |
| | Sep 1, 1994 | Dec 31, 1994 | 121 days | 0 | - |
| | Sep 1, 1989 | Dec 31, 1992 | 1217 days | 34 | 1.29 |
| | Jan 1, 1989 | Aug 31, 1989 | 242 days | 0 | - |
|
| Jan 1, 1984 | Dec 31, 1986 | 1095 days | 0 | - |
| | Aug 1, 1980 | Dec 31, 1980 | 152 days | 0 | - |
|
| Jan 1, 1978 | Jul 31, 1980 | 942 days | 0 | - |
|
| Jan 1, 1976 | May 31, 1976 | 151 days | 0 | - |
|
| Aug 1, 1972 | Dec 31, 1975 | 1247 days | 0 | - |
| | Jan 1, 1969 | Dec 31, 1969 | 364 days | 0 | - |
|
| Jan 1, 1964 | Dec 31, 1968 | 1826 days | 1 | 0.00 |