What does '30 year highs' mean in this sentence? Hello~ I was reading a BBC news article about Australia's economy and did not understand the expression '30 year highs' at the end of the sentence. Could you please tell me what it means? Does it mean that it reached the hightest in 30 years? or it has been the top for last 30 years? Here is the paragraph :) Economic strength Australia's economy has posted more than two decades of straight growth due to demand for its natural resources. The nation also managed to sidestep the worst of the financial crisis and was the only major developed nation to avoid the global recession in 2009. The country's economic strength has been reflected in the Australian dollar, which is currently trading close to 30 year highs.