This increase was at the expense of the three metropolitan regions of Jerusalem, Tel-Aviv and Haifa, whose share in the student population went down from 87.2% in 1990 to 60.7% in 2006. " Five out of the six universities that have undergraduates are in the three metropolitan regions, and their reduced share in the student population is the result of the slowdown in the growth of universities and the diversion of undergraduates to colleges." ( Whereas in 1991 only 10.7% among Arab secondary school graduates completed two years of study in academic institutions, their percentage went up to 18.8% in 2002.