2006/07/21
Market,  AdvIssues, DeclIssues, UnchIssues,     AdvVol,    DeclVol,    UnchVol
  NYSE,       1110,       2157,        131,  486751455, 1804926710,   18594600
  AMEX,        271,        688,         96,   29062605,  220058732,    8506780
NASDAQ,        778,       2219,        137,  628451955, 1705495687, 1109803699