Here are the EEO dates I have tracked in the last two years. It does appear that last year there was a gap between January and March;

March 2, 2007 to June 3, 2007
June 29, 2007 to October 7, 2007
October 26 , 2007 to January 13, 2008

March 7, 2008 to June 8, 2008
June 27, 2008 to October 5, 2008
October 31, 2008 to January 11, 2009