VMI/VMIR Differential Chart <pre> VMI VMIR Differential 1/4/2008 -2.13% -2.13% 0.00% 1/11/2008 -4.66% -4.66% 0.00% 1/18/2008 -7.92% -7.92% 0.00% 1/25/2008 -9.78% -9.78% 0.00% 2/1/2008 -8.10% -8.04% 0.06% 2/8/2008 -8.47% -8.22% 0.25% 2/15/2008 -8.54% -8.67% -0.13% 2/22/2008 -9.54% -9.52% 0.02% 2/29/2008 -9.38% -9.29% 0.09% 3/7/2008 -14.08% -13.76% 0.32% 3/14/2008 -16.52% -16.69% -0.17% 3/20/2008 -20.30% -19.41% 0.89% 3/28/2008 -17.19% -16.50% 0.69% 4/4/2008 -14.68% -14.24% 0.44% 4/11/2008 -13.51% -13.12% 0.39% 4/18/2008 -12.51% -11.69% 0.82% 4/25/2008 -12.76% -10.08% 2.68% 5/2/2008 -10.32% -7.22% 3.10% 5/9/2008 -7.50% -4.27% 3.23% 5/16/2008 -7.52% -2.66% 4.86% 5/23/2008 -7.64% 2.01% 9.65% 5/30/2008 -5.99% 2.29% 8.28% 6/6/2008 -6.73% 2.21% 8.94% 6/13/2008 -6.93% 1.45% 8.38% 6/20/2008 -7.43% 0.56% 7.99% 6/27/2008 -10.99% -2.85% 8.14% 7/3/2008 -13.51% -5.96% 7.55% 7/11/2008 -13.16% -6.06% 7.10% 7/18/2008 -12.02% -3.10% 8.92% 7/25/2008 -9.51% -1.17% 8.34% 8/1/2008 -9.60% -2.52% 7.08% 8/8/2008 -10.44% -3.03% 7.41% 8/15/2008 -8.20% 1.52% 9.72% 8/22/2008 -11.08% -1.10% 9.98% 8/29/2008 -10.32% -0.86% 9.46% 9/5/2008 -14.25% -5.38% 8.87% 9/12/2008 -16.28% -8.93% 7.35% 9/19/2008 -19.03% -11.80% 7.23% 9/26/2008 -21.28% -14.62% 6.66% 10/3/2008 -28.83% -22.36% 6.47% 10/10/2008 -42.02% -39.05% 2.97% 10/17/2008 -39.79% -35.58% 4.21% 10/24/2008 -42.38% -38.64% 3.74% 10/31/2008 -39.03% -35.93% 3.10% 11/7/2008 -39.95% -36.71% 3.24% 11/14/2008 -44.79% -41.66% 3.13% 11/21/2008 -52.44% -49.51% 2.93% 11/28/2008 -48.67% -46.85% 1.82% 12/5/2008 -49.01% -47.53% 1.48% 12/12/2008 -48.22% -46.79% 1.43% 12/19/2008 -48.57% -47.50% 1.07% 12/26/2008 -49.29% -46.99% 2.30% </pre>