NASD,Total,100.00%,22.83%,34.70%,42.47%
NASD,UBSS,63.47%,78.00%,72.37%,48.39%
NASD,ARCA,25.57%,22.00%,22.37%,30.11%
NASD,Principal,6.85%,0.00%,0.00%,16.13%
NASD,INET,2.28%,0.00%,3.95%,2.15%
NASD,NITE,1.83%,0.00%,1.32%,3.23%
NYSE,Total,100.00%,42.86%,20.33%,36.81%
NYSE,UBSS,80.22%,92.31%,67.57%,73.13%
NYSE,ARCA,19.23%,7.69%,32.43%,25.37%
NYSE,INET,0.55%,0.00%,0.00%,1.49%
AMEX,Total,100.00%,24.53%,36.79%,38.68%
AMEX,UBSS,84.91%,92.31%,89.74%,75.61%
AMEX,ARCA,13.21%,0.00%,10.26%,24.39%
AMEX,Undefined,1.89%,7.69%,0.00%,0.00%