In the United Kingdom, the April Ahead baseload contract price for 1 April Y+ 1 to 31 March Y+ 2 rose by 2 9 % in the wake of forward gas price movements... Natural gas consumption in France rose by approximately 4 % in first-half 2013 compared to first-half 2012... For the period 2007 to 2012, the CRE notes that fixed and variable generation costs rose by 5 1 % per year, capital expenses rose by 2 9 % per year and sales and marketing costs rose by 6 3 % per year.