2006/07/20
Market,  AdvIssues, DeclIssues, UnchIssues,     AdvVol,    DeclVol,    UnchVol
  NYSE,       1042,       2228,        123,  517513400, 1477940875,   22515610
  AMEX,        351,        630,         84,   13066310,  222484207,    4994870
NASDAQ,        755,       2248,        123,  398335077, 1700215759,    7352639