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.
In 2009 Australia produced 394 million tonnes of iron ore of which 362 million tonnes was exported valued at $30 billion. Western Australia produced 97% of the total production in 2009. Australia is the world's largest iron ore exporter and, as a producer, ranks second (with 17%) after China (39%).ustralian Resources. Although iron ore resources occur in all the Australian States and Territories, almost 93% of identified resources (totalling 64 billion tonnes) occur in Western Australia, including almost 80% in the Hamersley Province, one of the world's major iron ore provinces.