France confirms 0.6% GDP growth France's GDP grew by 0.6% in the first quarter after a rise in corporate profit margins and strong household spending, official figures show.Corporate profit margins rose to 31.1%, the highest since the first quarter of 2011, after a cut in payroll tax.The official figures by INSEE were a further sign of eco**my recovery, Finance Minister Michel Sapin said.The French eco**my saw roughly 0.4% growth in 2013 and 2014, after stagnating in 2012.