2006/05/01
Market,  AdvIssues, DeclIssues, UnchIssues,     AdvVol,    DeclVol,    UnchVol
  NYSE,       1447,       1802,        147,  866082965, 1135667570,   55700780
  AMEX,        470,        531,         88,   99056373,  133063660,    8879400
NASDAQ,       1152,       1899,        137,  787405057, 1327862415,   18328982