Mean Return and Standard Deviation for Nine Investment Classes Investment Class Fixed annuities Cash equivalents US Treasury bonds US investment-grade corporate bonds Non-US government bonds Domestic large cap stocks International equities Domestic mid cap stocks Domestic small cap stocks MeanRet 8.31% 7.73% 8.80% 9.33% 10.95% 11.71% 14.02% 13.64% 14.93% StdDev 0.54% 0.81% 5.98% 7.92% 10.47% 15.30% 17.16% 18.19% 21.82%