Just over two years http://www.alpinair.net/zofran-8-mg/ zofran ondansetron  Underlying earnings for the group fell 18 percent to $4.23 billion in the six months from $5.15 billion a year earlier, exactly in line with the consensus of analysts' forecasts. Weaker prices, particularly a dip in iron ore, took $1.3 billion off underlying earnings.