Times of receipt of start-of-frame indications associated with frames received from multiple image sensors at a video controller are monitored. The cage includes: a large-diameter side annular portion and a small-diameter side annular portion that form wall portions in both axial ends of pockets; and a plurality of cage bars. The competitive weights for each of the foreign currencies reflects competition between the goods of the United States and a country corresponding to the foreign currency in the markets of third countries. The non-crucial content is all the other content to be distributed. Physical members in a tamping head of the mandrel allow aggregate to remain in a cavity formed by the mandrel, and prevent aggregate from entering the mandrel during driving. 2 or less, and the rough surface of the film has of 0.