II. PRODUCTION AND EMPLOYMENT. III. IV. 3. and 312,700 tons per week were lost due to the holidays. The average number of wage earners on colliery books during the Production during July averaged 3,473,800 tons per week month was 713,641.* had fallen to 713,521 throughout the month. However, by the end of July, this figure and had been falling slightly Disputes have continued at a relatively low level. Production at opencast workings reached a. new high level of 239,000 tons per week and disposals of opencast coal to consumers reached nearer to programme level at 172,000 tons per week.