The impact on lower value is created on Corporate ( ERG shares 2009 2008 2007 2006 Year-end reference price Euro 9.68 8.51 12.88 17.40 High (11/05/2009) (1) “ 12.30 16.90 21.73 25.48 Low (18/03/2009) (1) “ 8.43 8.40 12.25 14.74 Average price “ 10.01 12.25 17.37 18.97 Average volume no.