$500
March 2001
$600
Aug 2001
$600
Dec 2001
$500
Feb 2002
$1000
April 2002
$600
Oct 2002
$740
Dec 2002
$500
Oct 2003
$1200
Dec 2003
$850
June 2004
$750
June 2005
$1000
Nov 2007
$900
Feb 2012