BERLIN, June 8 (Reuters) - German exports rose slightly in April, prompted by rising trade with the United States, suggesting a continued recovery in Europe’s biggest economy. Seasonally adjusted exports increased by 0.3% on the month after an upwardly revised rise of 1.3% in March, the Federal Statistics Office said on Wednesday. Imports dropped 1.7% after an increase of 7.1% in the prior month. On the year, exports to the United States jumped by 59.9% while imports rose by 2.2%. A Reuters poll had pointed to a 0.5% rise in exports and a 1.1% drop in imports. The trade surplus grew to 15.9 billion euros from 14 billion euros in March. (Reporting by Riham Alkousaa Editing by Madeline Chambers) Our Standards: The Thomson Reuters Trust Principles.