TOKYO (Reuters) - Japan's exports fell 21.9% in April from a year earlier, Ministry of Finance (MOF) data showed on Thursday, in a sign the coronavirus pandemic is taking a heavy toll on the country's export-reliant economy.That compared with a 22.7% fall seen by economists in a Reuters poll and followed an 11.7% drop in March.Imports fell 7.2% in the year to April, versus the median estimate for a 12.9% decrease.The trade balance came to a deficit of 930.4 billion yen ($8.65 billion), against..