Index Merrill Lynch 1-3-Year U.S. Treasury Index Salomon Brothers Mortgage Index Lehman Brothers Intermediate Treasury Index Lehman Brothers Intermediate Aggregate Index Lehman Brothers Aggregate Index Lehman Brothers Intermediate Corporate Index Lehman Brothers High Yield Index Lehman Brothers Global Aggregate Index (hedged to US$) Lehman Brothers Global Aggregate Index (unhedged in US$) Lehman Brothers Government/Credit Index JPMorgan Emerging Market Bond Index-Plus* JPMorgan Global Government Index Salomon Brothers Long Treasury Index     Sector Contribution to Duration (years) _ Credit   Historical 10-Year Returns Historical Volatility Duration       High-   Average Volatility (Ending % Years Govt. Corp. MBS Yield EMD Rating Convexity 6/02) % Std. Dev. 0.1   0.1       AAA 0.00 5.24 0.42 0.4 0.4         AAA 0.34 4.97 0.44 1.6 1.6         AAA 0.04 6.02 1.66 3.1     3.1     AAA -2.27 7.27 2.94 3.2 3.2         AAA 0.16 6.66 2.97 3.2 0.9 1.0 1.3   0.1 AA+ -0.71 7.02 2.99 4.3 1.7 1.4 1.1   0.1 AA+ -0.36 7.35 3.73 4.4   4.4       A 0.27 7.26 3.77 4.7       4.7   B+ 0.23 5.99 6.57 4.8 3.0 1.1 0.7     AAA- 0.09 7.70 3.12 4.8 3.0 1.1 0.7     AAA- 0.09 6.13 4.76 5.3 2.9 2.4       AA 0.56 7.35 4.21 5.8         5.8 BB 0.30 8.62 18.15 5.8 5.8         AAA 0.38 7.47 3.17 10.8 10.8         AAA 1.75 8.93 7.93 * Return is since the inception of the index in December 1993.