Tokyo, Oct. 18 (Jiji Press)--The average price of rice sold at some 1,000 supermarkets across Japan in the week through Sunday dropped 63 yen from the previous week to 4,142 yen per 5 kilograms, the agriculture ministry has said. The average was down for the fourth straight week, but it remained above 4,000 yen for the sixth week in a row. Ahead of the release of the latest average price...