SANTIAGO, Oct 15 (Reuters) - Chile’s central bank kept its benchmark interest rate steady at 0.5% on Thursday, in line with expectations, as the country maintains its efforts to revive the economy following the coronavirus pandemic. A central bank poll of traders last week predicted Chile’s rate, its lowest in a decade, would remain unchanged for the next year at least. The world’s No. 1 copper producer has kept its interest rate steady since successive cuts up until late March, when it warned of a “severe” economic contraction as a result of the virus. (Reporting by Cassandra Garrison Editing by Chris Reese)