; or (B) if the institution only enrolls graduate students, a student population that less than 5 percent of students that have an expected family contribution of zero. (5) Definitions In this subsection: (A) Available appropriated amount In this section, the term available appropriated amount means— (i) the amount appropriated under section 441(b) for a fiscal year, minus (ii) the amounts reserved under subsection (a) for such fiscal year. (B) Average cost of attendance The term average cost of attendance means, with respect to an institution, the average of the attendance costs for a fiscal year for students which shall include— (i) tuition and fees, computed on the basis of information reported by the institution to the Secretary, which shall include— (I) total revenue received by the institution from undergraduate and graduate tuition and fees for the second year preceding the year for which it is applying for an allocation; and (II) the institution's enrollment for such second preceding year; (ii) standard living expenses equal to 150 percent of the difference between the income protection allowance for a family of five with one in college and the income protection allowance for a family of six with one in college for a single independent student