The Luhn Formula: 1  Drop the last digit from the number. The last digit is what we want to check against. 2  Reverse the numbers. 3  Multiply the digits in odd positions (1, 3, 5, etc.) by 2 and subtract 9 to all any result higher than 4  9. Add all the numbers together.
Australia Exports of Goods and Services is at 19.79%, compared to 20.90% last year. This is higher than the long term average of 16.23%. Categories: Components of GDP, International Transactions. Region: Australia. Report: World Development Indicators.
It is used to generate electricity and 24% of the coal mined in Australia is exported, mostly to eastern Asia. In fiscal year 2013/14, 430.9 million tonnes of coal were mined, and 375.1 million tonnes were exported.Coal provides about 69 in there% of Australia's electricity production.In fiscal year 2008/09, 487 million tonnes of coal was mined, and 261 million tonnes exported. In 2013, Australia was the world's fifth-largest coal producer, after China, the United States, India, and Indonesia.oal provides about 69 in there% of Australia's electricity production. In fiscal year 2008/09, 487 million tonnes of coal was mined, and 261 million tonnes exported. In 2013, Australia was the world's fifth-largest coal producer, after China, the United States, India, and Indonesia.