country20142015201620172018
Cyprus4147454137
Belgium5335493031
Greece5240423026
Portugal3331604617
Spain4237462727
Romania5029362931
Bulgaria5225322927
Poland3526432629
Austria3621472826
France4135392120
Hungary3827452422
Slovenia3632372922
Germany4637292320
Czech Republic3021423228
Luxembourg2824432432
United Kingdom3222283230
Italy4131191226
Ireland2117402921
Finland2321402614
Croatia1718323314
Denmark2718311917
Sweden1429241921
Lithuania2121311418
Slovakia2325192117
Malta1622202022
Latvia1718232219
Netherlands1317241319
Estonia1516201711