Was the maternal mortality rate per 100,000 births in Guinea Bissau higher in 2010 or 2008?
return Guinea Bissau ;return maternal mortality rate per 100,000 births of #1 ;return #2 in  2010 ;return #2 in  2008 ;return which is highest of #3 ,  #4
['select', 'project', 'filter', 'filter', 'comparison']