2004/05/20
Market,  AdvIssues, DeclIssues, UnchIssues,     AdvVol,    DeclVol,    UnchVol
  NYSE,       1777,       1307,        112,  579203949,  743331046,   13073900
  AMEX,        377,        406,         84,  192067629,   39742080,   12882050
NASDAQ,       1324,       1754,        145,  624361173,  874299732,   23281570