[['name', 'country', 'mandate start', 'mandate end', 'term length'], ['dame elmira minita gordon', 'belize', '21 september 1981', '17 november 1993', '12years , 57days'], ['jeanne sauvé', 'canada', '14 may 1984', '29 january 1990', '5years , 260days'], ['dame nita barrow', 'barbados', '6 june 1990', '19 december 1995', '5years , 196days'], ['dame catherine tizard', 'new zealand', '13 december 1990', '21 march 1996', '5years , 99days'], ['dame pearlette louisy', 'saint lucia', '17 september 1997', 'incumbent', '16years , 137days'], ['adrienne clarkson', 'canada', '7 october 1999', '27 september 2005', '5years , 324days'], ['dame sian elias', 'new zealand', '22 march 2001', '4 april 2001', '0years , 13days'], ['dame silvia cartwright', 'new zealand', '4 april 2001', '4 august 2006', '5years , 122days'], ['dame ivy dumont', 'the bahamas', '11 november 2001', '30 november 2005', '4years , 19days'], ['monica dacon', 'saint vincent and the grenadines', '3 june 2002', '2 september 2002', '0years , 91days'], ['michaëlle jean', 'canada', '27 september 2005', '1 october 2010', '5years , 4days'], ['dame sian elias', 'new zealand', '4 april 2006', '23 august 2006', '0years , 141days'], ['emmanuelle mignon', 'andorra', '6 june 2007', '24 september 2008', '1year , 110days'], ['dame louise lake - tack', 'antigua and barbuda', '17 july 2007', 'incumbent', '6years , 199days'], ['quentin bryce', 'australia', '5 september 2008', 'incumbent', '5years , 149days'], ['dame sian elias', 'new zealand', '23 august 2011', '31 august 2011', '0years , 8days'], ['sylvie hubac', 'andorra', '15 may 2012', 'incumbent', '1year , 262days'], ['sandra mason', 'barbados', '30 may 2012', '1 june 2012', '0years , 2days'], ['dame cécile la grenade', 'grenada', '7 may 2013', 'incumbent', '0years , 270days']]
1 third of the Female Head Of State on this List held office for less than a year
1 third of the [ENT] on this [ENT] held office for less than a year