 |  | | Dec 31, 2011 |
|  |  | | Sept 30, 2011 |
|  |  | | June 30, 2011 |
|  |  | | Mar 31, 2011 |
|  |  | | Dec 31, 2010 |
|  |  | | Sept 30, 2010 |
|  |  | | June 30, 2010 |
|  |  | | Mar 31, 2010 |
|  |  | | Dec 31, 2009 |
|  |  | | Sept 30, 2009 |
|  |  | | June 30, 2009 |
|  |  | | March 31, 2009 |
|  |  | | Dec. 31, 2008 |
|  |  | | Sept. 30, 2008 |
|  |  | | June. 30, 2008 |
|  |  | | Mar. 31, 2008 |
|  |  | | Dec. 31, 2007 |
|  |  | | Sept. 30, 2007 |
|  |  | | June. 30, 2007 |
|  |  | | Mar. 31, 2007 |
|  |  | | Dec. 31, 2006 |
|  |  | | Sept. 30, 2006 |
|  |  | | June. 30, 2006 |
|  |  | | Mar. 31, 2006 |
|  |  | | Dec. 31, 2005 |
|  |  | | Sept. 30, 2005 |
|  |  | | June. 30, 2005 |
|  |  | | Mar. 31, 2005 |
|  |  | | Dec. 31, 2004 |
|  |  | | Sept. 30, 2004 |
|  |  | | June. 30, 2004 |
|  |  | | Mar. 31, 2004 |
|  |  | | Dec. 31, 2003 |
|  |  | | Sept. 30, 2003 |
|  |  | | June. 30, 2003 |
|  |  | | Mar. 31, 2003 |
|  |  | | Dec. 31, 2002 |
|  |  | | June. 30, 2002 |
|  |  | | Dec. 31, 2001 |
|  |  | | Sept. 30, 2001 |
|  |  | | June. 30, 2001 |
|  |  | | Mar. 31, 2001 |
|  |  | | Dec. 31, 2000 |
|  |  | | Sept. 30, 2000 |
|  |  | | June. 30, 2000 |
|  |  | | Mar. 31, 2000 |
|  |  | | Sept. 30, 1999 |
|  |  | | June. 30, 1999 |
|  |  | | Mar. 31, 1999 |
|  |  | | Dec. 31, 1998 |
|  |  | | Sept. 30, 1998 |
| |
|