1- January 1990 2- June 1990 3- December 1991 4- May 1992 5- July 1992 6- January 1993 7- June 1993 8- August 1993 9- January 1994 10- June 1994 11- August 1994 A

12- January 1995 13- February 1995 14- January 1996 15- February 1996 16- June 1996 17- January 1997 18- May 2000 19- July 2000 A 20- January 2001 A 21- May 2001 A

22- August 2001 A 23- May 2002 24- August 2002 25- January 2003 A 26- June 2003 27- May 2006 28- January 2007 A 29- June 2007 A 30- January 2008 31- June 2008 A

32- August 2008 A 33- January 2009 A 34- June 2009 A 35- August 2009 A 36- January 2010 A 37- June 2010 A 38- January 2011 A 39- June 2011 A 40- August 2011 A 41- January 2012 A