NASD,Total,100.00%,52.11%,3.45%,44.44%
NASD,Principal,100.00%,100.00%,100.00%,100.00%
NYSE,Total,100.00%,1.10%,0.00%,98.90%
NYSE,Principal,100.00%,100.00%,0.00%,100.00%
AMEX,Total,100.00%,33.33%,16.67%,50.00%
AMEX,Principal,100.00%,100.00%,100.00%,100.00%