T9 Industry Statistics Based Upon LTMS Data Sets 10:56 Tuesday, October 19, 2010 1 April Period =10/1 to 3/31 October Period =4/1 to 9/30 pooled s is by reference material ( example: oil) Degrees of Pooled Parameter Period N-size Average Yi Freedom s ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ PB 1997APR 4 0.3602 0 . PB 1997OCT 27 -0.1602 18 1.0123 PB 1998APR 7 0.7964 5 1.6044 PB 1999APR 10 1.0014 9 1.1251 PB 2000APR 5 0.7000 4 1.3342 PB 2001APR 2 -1.5794 1 0.1921 PB 2002OCT 2 -1.3492 1 0.4282 PB 2003OCT 1 -1.4587 0 . ALW 1997APR 4 -0.2734 0 . ALW 1997OCT 27 0.1232 18 2.4885 ALW 1998APR 7 -0.7058 5 1.9142 ALW 1999APR 10 0.1637 9 2.9064 ALW 2000APR 5 -0.9290 4 3.2860 ALW 2001APR 2 -0.9772 1 0.8485 ALW 2002OCT 2 0.1583 1 1.4142 ALW 2003OCT 1 -0.3922 0 . TRWL 1997APR 4 -0.5277 0 . TRWL 1997OCT 27 0.1022 18 28.7014 TRWL 1998APR 7 0.0614 5 12.7028 TRWL 1999APR 10 0.0651 9 16.7136 TRWL 2000APR 5 -0.0897 4 13.4052 TRWL 2001APR 2 1.5137 1 1.4142 TRWL 2002OCT 2 0.7658 1 20.5061 TRWL 2003OCT 1 -0.1017 0 .