The BSE Sensex has scaled a new life-time high for the ninth straight calendar year, and registered an average gain of nearly 15 per cent after hitting a new high in the past, shows data.The BSE Sensex has scaled a new life-time high for the ninth straight calendar year, and registered an average gain of nearly 15 per cent after hitting a new high in the past, shows data. Latest News [ SOBAN NEWS: International and National ]