Quiche Lorraine has nothing to do with Andorra. It's just a typical food from a neighbouring country, and from a very distant region at that. I think it should be removed. Perhaps, to replace it, you could add "international organization joined in 1993 (United Nations)"
More issues: the population of Andorra is no longer above 80,000. In the past years the population has gone down a bit due to the crisis. If you change the figure to 75,000, it should be ok.
Thanks for your suggestions. I think I will keep Quiche Lorraine, only to fill in the letters. I will add something for U, like you said, and the population is still disputed by many sites so...
Some suggestions more: Co-prince of Andorra 1944-1946 and 1959-1969 (De Gaulle), Peninsula Andorra is part of (Iberian), A yearly festival is held dedicated to this music genre (Jazz), country recognized by Andorra in 2011 (Kosovo), the last big earth__ took place in 1373 (quake), number of Olympic medals obtained by Andorra (Zero).