71.   Public opinion surveys show a big jump in support for Buchanan since he led the GOP pack out of the New Hampshire primary.

72.   Sane said he began preparing his visit two years ago, after his organization noticed a big jump in reports of abuses in Mexico.

73.   She had hoped for one big jump and this was it, clearly the longest of the competition.

74.   She had hoped for one big jump, and this was it, clearly the longest of the competition.

75.   She also cited the big jump for technology stocks this week.

76.   Some economists argue that, without big jumps in productivity, a country with a shrinking work force will never see a return to economic growth.

77.   Some people know Christopher Wheeldon as a member of New York City Ballet whose boyish elan, big jump and clean line cause him to stand out.

78.   Soon, entrepreneurs saw a chance to build huge networks crisscrossing the globe to serve the big jumps in demand for data transmission.

79.   Some analysts pay particular attention in the labor-market report to the index of aggregate weekly hours, which edged slightly lower after a big jump in February.

80.   Still, many analysts said a big jump in sales may be discounted because sales were anemic in January, when winter storms kept consumers at home.