Japanese exports grew in September for a second straight month, signaling a gradual recovery from the March 11 earthquake and tsunami. The Japanese Finance Ministry announced today that exports rose 2.4 percent from a year earlier, pushing Japan back into a trade surplus.The country registered a trade deficit in August.The Ministry said the September exports stood at more than 78 billion dollar, while imports came to 74 billion dollar, registering a trade surplus of 4 billion dollars. The recovery was led by exports of vehicles and auto parts.