text: This is a chart of trend of regional gross value added of Wirral at current basic prices published ( pp . 240 â `` 253 ) by Office for National Statistics with figures in millions of British Pounds Sterling .
simplified: This is a chart of trend of regional gross value added of Wirral at current basic prices published ( pp .240 â `` 253 ) by the Office for National Statistics with figures in millions of British Pounds Sterling .