Check out "Database rights".
http://en.wikipedia.org/wiki/Database_right
In the EU, while the data itself may not be copyrightable, the act of compiling it into a usable database makes the database defensible.
http://en.wikipedia.org/wiki/Database_right
In the EU, while the data itself may not be copyrightable, the act of compiling it into a usable database makes the database defensible.
You're pretty much covered and you won't have to pay a penny.