Quarterly Historical Performance

TOTAL FUND

RETURN SUMMARY

Quarter 1 Year 3 Years 5 Years 10 years

12/31/2011

Total Fund 5.7% 0.2% 11.0% 1.5% 5.1%

Policy Portfolio 6.0 0.7 11.5 1.8 5.2

9/30/2011

Total Fund -9.9% 0.6% 3.2% 1.3% 5.3%

Policy Portfolio -9.5 0.8% 3.2 1.6 5.4

6/30/2011

Total Fund 1.2% 22.4% 3.4% 4.4% 5.4%

Policy Portfolio 1.2 21.5 3.2 4.6 5.4

3/31/2011

Total Fund 4.0% 13.2% 2.6% 3.9% 5.7%

Policy Portfolio 3.6 13.0 2.5 4.1 5.7

12/31/2010

Total Fund 6.2% 12.2% -0.4% 3.7% 4.6%

Policy Portfolio 6.2 12.3 -0.3 4.0 4.6

9/30/2010

Total Fund 9.6% 9.0% -2.5% 2.9% 3.4%

Policy Portfolio 9.1 9.2 -2.2 3.2 3.5

6/30/2010

Total Fund -6.4% 11.1% -4.4% 1.6% 2.4%

Policy Portfolio -5.8 11.9 -3.8 2.1 2.6

3/31/2010

Total Fund 3.0% 34.1% -1.0% 3.7% 2.9%

Policy Portfolio 3.3 36.1 -0.4 4.1 3.1

12/31/2009

Total Fund 3.2% 21.5% -1.3% 2.9% 3.0%

Policy Portfolio 3.9 23.9 -0.8 3.2 3.0

9/30/2009

Total Fund 11.7% 0.0% -1.0% 3.9% 3.7%

Policy Portfolio 11.6 -0.2 -0.6 4.2 3.7

6/30/2009

Total Fund 13.0% -18.8% -3.1% 1.8% 2.3%

Policy Portfolio 14.4 -18.9 -2.6 2.2 2.3

3/31/2009

Total Fund -6.7% -28.9% -7.3% -0.9% 1.5%

Policy Portfolio -6.7 -29.7 -7.2 -0.8 1.4

12/31/2008

Total Fund -15.1% -27.6% -4.4% 1.3% 2.4%

Policy Portfolio -16.1 -28.0 -4.1 1.5 2.3

9/30/2008

Total Fund -9.1% -14.8% 2.1% 6.8% 5.4%

Policy Portfolio -9.4 -14.3 2.4 6.9 5.3

6/30/2008

Total Fund -1.1% -3.1% 6.5% 9.5% 5.6%

Policy Portfolio -0.9 -1.9 7.0 9.7 5.8

3/31/2008

Total Fund -4.9% 1.9% 7.9% 12.4.% 5.9%

Policy Portfolio -4.5 2.6 8.3 12.4 6.0