11.   He said the agency expected a fairly gradual increase in ridership beginning in the fall.

12.   He proposes a gradual increase in the number of medallions that would allow owners who have recently invested in medallions enough time to recoup much of their cost.

13.   His aides confirmed that Bradley meant that he would oppose any further increase in the ages for Social Security eligibility beyond the gradual increase already mandated.

14.   Meanwhile, on the Sony lot where the show is produced, there is an aura of optimism that coincides with the gradual increase in ratings.

15.   Nevertheless, he said, evidence is mounting that increasing levels of carbon dioxide in the atmosphere are causing a gradual increase in global temperatures.

16.   On Tuesday, a gradual increase in pump capacity began, but the damage has already been done for the summer, officials said.

17.   Over the past year there has been a gradual increase in concern among investors, which has shown itself in a flight to quality.

18.   Spending on public projects and investment in housing construction have been rising along with a gradual increase in consumer spending, he said.

19.   Spending on public works projects and investment in housing construction have been rising along with a gradual increase in consumer spending, he said.

20.   Steinbach said he had noticed a gradual increase in complaints by students that professors were failing to acknowledge their use of student work.