It would fall to 10 percent by 2006 when all the rates reductions will be fully phased in.
The new standards went into effect this year and will be fully phased in by 2003.
A small part of the prescription drug program went into effect this year but it will not be fully phased in until 1991.
Princeton officials say the plan will ultimately cost the university some $6 million a year after being fully phased in over the next four years.
The big tax savings would not come for five years or more, after the plan's main provisions have been fully phased in.
When fully phased in, the bill would cost about $50 billion a year.
New statewide standards went into effect this year and are to be fully phased in by 2003.
When the program is fully phased in, the checks are to rise to about $600 a year.
But when the plan is fully phased in two years from now, some will save far more.
The standards are to be fully phased in by 2003.