 
 <prompt> Na which one dey generate smaller percentage of DEI power output, natural gas or hydroelectric power plants? Given di last question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: Energy production for Greece dey mostly controlled by Public Power Corporation (wey dem dey call DEI). For 2009, DEI supply 85.6% of all energy wey dem need for Greece, but e reduce reach 77.3% for 2010. Almost half (48%) of DEI power na from lignite, wey be drop from 51.6% for 2009. Anoda 12% dey come from Hydroelectric power plants and 20% from natural gas. Between 2009 and 2010, energy production from independent companies increase by 56%, from 2,709 Gigawatt hour for 2009 reach 4,232 GWh for 2010. 