Another study of hospital patients in the same period found an increase to 18 percent, from zero.
For example, the city said the public school system had eliminated 90 staff members but the report found an increase of 404 jobs.
A 2009 study, found a 30% increase in Chinese diabetes over 7 years.
The latest report found a similar increase in risk after 5.6 years of follow-up.
By contrast, the 1990 census found an increase of only 6 percent in the white population.
A 2012 review however did not find an increase in adverse effects with treatment.
Some 17,878 students have found a place through clearing, compared to 13,597 a year ago - a 31% increase.
Some studies have found such an increase, but the agency disagrees.
Although rates of depression rise with age, the study found increases among young people.
The study also found an increase in the number of women who used family planning and contraceptives.
