NR = Just A Few Probs
PTOI Historical April 2011
04/29/2011 2.24 3.00 2.05 2.78 417,170
04/28/2011 1.96 2.25 1.94 2.25 174,529
04/27/2011 1.57 2.05 1.55 1.92 392,824
04/26/2011 1.59 1.64 1.52 1.61 285,316
04/25/2011 1.87 1.87 1.68 1.68 286,864
04/21/2011 1.22 1.84 1.05 1.84 736,234
04/20/2011 1.96 2.08 1.17 1.26 949,402
04/19/2011 2.15 2.15 2 2.14 171,325
04/18/2011 2.05 2.17 2.05 2.14 131,592
04/15/2011 2.2 2.25 2 2.17 234,742
04/14/2011 2.1 2.32 1.9 2.25 375,545
04/13/2011 2.21 2.38 1.88 2.3 692,446
04/12/2011 1.8 2.12 1.78 2.12 686,209
04/11/2011 1.4 1.93 1.3 1.75 907,578
04/08/2011 1.1 1.24 1.04 1.24 220,368
04/07/2011 1.05 1.14 0.96 1.11 160,793
04/06/2011 1.01 1.1 0.98 1.05 155,038
04/05/2011 1.07 1.07 0.95 1 322,332
04/04/2011 0.88 1.13 0.85 1.04 658,574
04/01/2011 0.84 0.85 0.82 0.85 138,711