In how many years, the supply (in million tonne) of rice was more than the average supply for 2008 to 2013? The following table gives demand and supply of rice, in million tonne, for 2008 to 2013 (surplus = supply - demand): 2008: demand 43.3, supply 46.4; 2009: demand 47.2, supply 47.8; 2010: demand 49.5, supply 50.7; 2011: demand 53.4, supply 54.2; 2012: demand 54.5, supply 57.3; 2013: demand 62.7, supply 63.4.