 A poll by the government @-@ run Centre for Sociological Investigations ( Centro de <unk> <unk> ) , published in April 2005 , reported that 66 % of Spaniards favoured legalising same @-@ sex marriage . Another poll taken by Instituto <unk> a day before the bill passed placed support of the same @-@ sex marriage bill at 62 @.@ 1 % and support of adoption by same @-@ sex couples at 49 @.@ 1 % . An Instituto <unk> poll taken nine months after the bill passed said 61 % agreed with the government 's decision . 
