date,close 26-Mar-12,606.98 27-Mar-12,614.48 28-Mar-12,617.62 29-Mar-12,609.86 30-Mar-12,599.55 2-Apr-12,618.63 3-Apr-12,629.32 4-Apr-12,624.31 5-Apr-12,633.68 9-Apr-12,636.23 10-Apr-12,628.44 11-Apr-12,626.20 12-Apr-12,622.77 13-Apr-12,605.23 16-Apr-12,580.13 17-Apr-12,543.70 18-Apr-12,443.34 19-Apr-12,345.44 20-Apr-12,234.98 23-Apr-12,166.70 24-Apr-12,130.28 25-Apr-12,99.00 26-Apr-12,89.70 27-Apr-12,67.00 30-Apr-12,53.98 1-May-12,58.13