GTG 23-9   GTG 23-8
December 2004 - 23/9   November 2004 - 23/8
GTG 23-7   GTG 23-6
October 2004 - 23/7   August/September 2004 - 23/6
GTG 23-5   GTG 23-4
July 2004 - 23/5   May/June 2004 - 23/4
GTG 23-3   GTG 23-2
April 2004 - 23/3   March 2004 - 23/2
GTG 23-1    
January/February 2004 - 23/1