20080401 Market, AdvIssues, DecIssues, UncIssues, AdvVol, DeclVol, UnchVol, NewHis, NewLows NYSE, 2691, 518, 53, 1528633000, 150775000, 12387000, 30, 16 AMEX, 793, 452, 81, 18203000, 13571000, 1343000, 10, 36 NASDAQ, 2202, 730, 124, 1906669000, 192779000, 11606000, 26, 57