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据联合国1993年统计,全世界总人口为55.8亿人,世界煤炭产量为45.81亿吨,人均煤炭产量821kg。澳大利亚总人口为1766万人,当年煤炭
According to the UN statistics in 1993, the total population of the world is 5.58 billion people, the world’s coal production is 4.581 billion tons and the per capita coal output is 821 kg. Australia has a total population of 17.66 million people in that year