INSTL 1110 18.629 Dec 31, 14 Dec 21,15 201.94 204.36 -2.42 FIFO 15.326 len 30,15 Dec 21,15 166.13 169.97 -3.84 FIFO 13.969 Feb 27, IS Doc 21, 15 151.42 153.94 -252 FIFO 16.543 Mar 31, IS Dec21, 15 179.33 182.63 -3.30 RIO 16023 Apr30, IS Dec 21,15 173.69 176.25 •256 RFO 16.