Across all types of public institutions, in-state undergraduate tuition and fees increased annuallyby an average of 4.1 percent at research/doctoral institutions, 4.2 percent at comprehensive institutions, 4.3 percent at bachelors institutions, and 3.4 percent at 2-year institutionsbetween 198889 and 199798 (figure 3). On average, gross tuition revenue accounted for increasing proportions of total educational and general (E&G)4 revenue over this period, while revenue from state appropriations declined as a proportion of the total.
Across all types of private not-for-profit institutions, undergraduate tuition and fees increased annuallyby an average of 3.6 percent at research/doctoral institutions, 4.1 percent at comprehensive institutions, and 3.7 percent at bachelors institutionsbetween 198889 and 199596 (figure 4). On average, gross tuition revenue accounted for increasing proportions of total E&G revenue over this period. At the same time, the proportion of E&G revenue from endowment income and private gifts, grants, and contracts decreased.