"During the fourth quarter 2012 several FRAN indicators varied radically compared with other reporting periods. First, there were only 13 613 detections of illegal border-crossing at the EU level - the lowest ever recorded figure
“During the fourth quarter 2012 several FRAN indicators varied radically compared with other reporting periods. First, there were only 13 613 detections of illegal border-crossing at the EU level – the lowest ever recorded figure for any quarter since data collection began in 2008. And for the first time since 2010, there were more detections at the sea borders (59%) , primarily in the Central Mediterranean, than at the land borders.”
See: Statewatch Observatory on Frontex updated: General Report 2012 (pdf) and Frontex Risk Analysis Network (FRAN) Quarterly: January-March 2013, October-December 2012 and July-September 2012 (pdfs).
And see: Frontex FRAN Report for Q4 2012 (Migrants at Sea, link)