How many countries have national anthems with no words?

Some national anthems have no official lyrics at all, including Bosnia and Herzegovina, Spain, and San Marino. (The European anthem also lacks official lyrics, but several unofficial lyrics have been written; the lyrics of Ode to Joy have also been unofficially used.)

The National Anthem of Bosnia and Herzegovina (Bosnian: Državna himna Bosne i Hercegovine), is the name of the official national anthem of Bosnia and Herzegovina. It is one of the four national anthems (along with that of Kosovo, Spain and San Marino) in the world to have no official lyrics.

The Marcha Real (Spanish pronunciation: [?mart?a re?al], "Royal March") is the national anthem of Spain. It is one of only four national anthems (along with those of Bosnia and Herzegovina, Kosovo and San Marino) in the world to have no official lyrics.