2006/04/20
Market,  AdvIssues, DeclIssues, UnchIssues,     AdvVol,    DeclVol,    UnchVol
  NYSE,       1528,       1720,        156, 1394529260, 1101604190,   16783550
  AMEX,        470,        528,        101,  190140660,  272762524,    4039900
NASDAQ,       1343,       1684,        146,  867079797, 1273622771,   65194239