Department of Education figures indicate that there are slightly more than 1.6 million students in the traditional government school system. Allowing for some growth and incorporating approximately 15,000 charter school students in 1998, we arrive at a base projection of 1,650,000 students in the "public" system, which includes the traditional standard government system and newer charter schools. Multiplying this number by the state per-pupil grant guarantee, we arrive at a current system state and local per-pupil expenditure of $9.3 billion in 1998. As noted above, this direct per-pupil expenditure is a substantial underestimate of the total expenditures, but changes in this measure should be a reliable predictor of the change in total expenditures. The projections of student enrollment and expenditures are shown on page 58 in Table 3 and Table 4, respectively.