AMEX,TOTAL,100%,20%,45%,35%
AMEX,Principal,60%,83.33%,18.52%,100%
AMEX,ASE,40%,16.67%,81.48%,0%
NASD,TOTAL,100%,42.15%,52.89%,4.96%
NASD,Principal,95.04%,99.02%,93.75%,75%
NYSE,TOTAL,100%,16.66%,71.12%,12.22%
NYSE,NYSE,93.32%,98.43%,91.37%,97.65%
NYSE,Principal,6.66%,1.57%,8.59%,2.35%