- Please select years to show : 10 Year Graph 5 Year Graph 3 Year Graph In the graph, the black line represents the share price adjusted where necessary for capital changes that have occurred (eg. for scrip or rights issues). The purple line represents the share price movement relative to the FT-SE All-Share Index and the green line represents the share price movement relative to the company's ...hemscott.com/scripts/clPrcPage.dll/Show?EPIC=SGB&COY_ID=03437&client=03437.htm