How many referendums monarchy vs. republic have been held in the History?

[espejor]

Hi! I would like to know how many referendums monarchy vs. republic have been held in the History. I remember these:

-Bulgaria: With the country occupied by the Sovietic troops, a referendum was held and the monarchy abolished.

-Italy: The Italian monarchy was abolished in the 1946 referendum.

-Belgium: Was the question royale a referendum about the continuance of the Belgian dynasty or "only" about if the suitable king was Leopold III or Baudouin I?

-Greece: The 1974 referendum showed very clearly that the Greek people didn't want the Royal Family to return.

-Iran: Shortly after the Shah left Tehran, a public referendum abolished the monarchy with more of the 95% of the votes were favourable to the proclamation the Islamic Republic...

-Brazil: In the 90's, due to the request of a member of the parliament, was celebrated a referendum one century after the downfall of the Orleàns-Bragança.

-Cambodia: Was the 1993 plebiciste a referendum about the monarchy or simply a new constitution was promulgated?

-Albania: In 1997 the monarchical option won the popular plebiscite, but the governement manipulated the results. Officially, only one third of the Albanians voted for the return of king Leka.

-Australia: A plebiciste in 1999 was held and the 55% of the votes were pro-monarchy.

I don't know more examples of referendums held about monarchy vs. republic. And you?

Regards and thank you!