LJUBLJANA (Slovenia), August 8 (SeeNews) - The Ljubljana Stock Exchange (LJSE) blue-chip SBITOP index dropped 0.28% to 859.44 points on Thursday, largely due to a decrease in the share price of the two insurers among its members - Zavarovalnica Triglav [LJE:ZVTG] and Sava Re [LJE:POSR].