Cika wannan jumla: A ranar 12 ga Yuni 2008, an gudanar da kuri'ar raba gardama kan amincewa da yarjejeniyar Lisbon. Wannan ya ci nasara, ta hanyar kashi 46.6% zuwa 53.4%. A ranar 15 ga Oktoba, 2009, wani
an gudanar da kuri'ar raba gardama ta biyu kan amincewa da shi, wanda aka amince da shi da kashi 67.1% zuwa 32.9%.