How did Gibraltar’s voters decide the 1967 referendum on sovereignty?

In the 1967 referendum, voters in Gibraltar were asked to choose between Spanish sovereignty and maintaining a continued close association with Britain.1

The residents overwhelmingly rejected Spanish rule, with the final tally resulting in 12,138 votes to remain associated with Britain against only 44 votes in favor of Spanish sovereignty. This decisive outcome reflected the territory's long-standing desire to retain its status, which had been established following the Treaty of Utrecht in 1713.12