STOCKHOLM — Swedish exhib chain SF Bio, which is rumored to be up for sale, scored its highest-ever admissions tally last year.With 12.3 million admissions — more than 1.2 visits per Swede — it was an increase of 11% from 2011. “Skyfall” topped the chart with 733,000 admissions, and “The Hobbit: An Unexpected Journey” and “The Dark Knight Rises” both passed half a million visitors. Kathrine Windfeld’s Swedish thriller “Hamilton –In the Interest of the Nation” sold 325,000 tickets, the highest for a local pic. It was reported recently that Bonnier wants to sell SF Bio and has lined up Nordea bank to advise on a deal that, including SF Bio in Norway, could be worth around $306 million. The Swedish Film Institute will announce the total Swedish B.O. for 2012 at the beginning of next month. Preliminary results indicate more than 18 millions tickets were sold, with 22% going to Swedish films, a considerable uplift in both cases.