rtokens: Yields on U.S. 30-year Treasury bonds were 6.51 percent when stock trading closed in Mexico , unchanged from Thursday .
pos: JJ NNS VBD RB VBN IN NNP RB NN NNS WDT VBD VBN TO VB IN NNP POS NNS CC VBD VBN IN NN NNS VBN IN NN VBD IN NNP .
tokens: Mexican stocks were also hurt by U.S. long bond rates which had begun to rise before Greenspan 's comments and were inflated by employment data released before trade began in Mexico .
ltokens: Volume was regular at 74.7 million shares traded .