求英语高手翻译一小段英语，谢谢。。谢谢

关于矿业的
（22）This report compiles available coal resource quantity information relating to New Zealands known coal deposits,as at the end of 1987 。resources are made for all of New Zealands coal regions,and a total in-ground coal resource estimate of 15.7 billion tonnes is given。History， structure and other general information is included on past and present coal mines， many small fields are included。