66% 68% 32%34% 36% 577.6 638.6 601.6 The reduction in percentage value of the supplies in the local area, from 68% to 64% in 2010, is partly due to the December 2009 acquisition by Aimeri (a Milan-based company) of the waste management division of Manutencoop (a Bologna-based supplier of Hera in waste management services).