In reply to bleddynmawr:
A shedload of French colonial countries refused the option in the 1950´s preferring to keep their status as either overseas territories or become states in the French Community.
Puerto Rico has rejected independence 3 times, whether they count as a country is a matter of debate.
Of course more interesting really is which European country wished to give up their independence and were prevented from doing so?
Post edited at 18:51