gather statistics on the entries and exits, refusals of entry and overstays of third-country nationals in order to improve the assessment of the risk of overstays and support evidence-based Union migration policy making;
staitisticí a thiomsú faoi dhul isteach agus faoi imeacht, faoi dhiúltú dul isteach agus faoi rófhanacht na náisiúnach tríú tír d’fhonn measúnú riosca an rófhanachta a fheabhsú agus chun tacú le beartas fianaise-bhunaithe imirce an Aontais a chruthú;