I'll try it geographically- I come up with 33 but I'm sure there are more- will have get the old passport out and have a look
North America
Canada US and Mexico
Central America
Guatemala, Belize, Costa Rica,
South America
Peru, Ecuador
Europe-
UK, Holland, Germany, Austria, Italy, Vatican city,
Asia
Japan, Thailand, Philippines, Indonesia, Sri Lanka
Pacific
CNMI, Guam, PNG, Solomons, Vanuatu, New Caledonia, Fiji, FSM, Tonga, Samoa, American Samoa, Cook Islands, French Poly, Australia, New Zealand