The graph below shows the TSR performance from 6 June 2007 when the Group listed on the London Stock Exchange to 31 December 2011. This is compared against the TSR performance of the FTSE 250 index. The Group was a member of the FTSE 250 index between September 2007 and March 2010. The graph is based upon £100 being invested in the shares of PV Crystalox Solar PLC in June 2007 if all dividends had been reinvested and the comparative figures for the FTSE 250 index again assuming that dividends were reinvested. The data has been sourced from Thomson Datastream.