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Country2007200920102011201220132014201520162017
austria57151691314111714
belgium10141420241612112112
bulgaria1
croatia1
cyprus211
czech republic11111322
denmark3761013212847
estonia111
finland7649839567
france41337357843049375252
germany32297865774269446469
greece4334422
hungary6153212341
iceland1
ireland33565310635
israel22122623263226321429
italy2417212729719231822
luxembourg11
netherlands27172550432939383836
norway1125446137
poland123221232
portugal225756455
romania1111
serbia1
slovakia1
slovenia1
spain22192527251322142422
sweden11621152169131715
switzerland1722282337233292625
turkey211212
united kingdom5743751201436464626471