This report is based on data from four iterations of the National Postsecondary Student Aid Study (NPSAS), a large, nationally representative sample survey of students that focuses on how they finance their education. NPSAS includes data on federal Pell Grant awards, which are need-based grants awarded to low-income students, primarily undergraduates. This Data Point examines how Pell Grant receipt and recipients' income have changed over time. The main criterion for Pell Grant eligibility is income. For dependent students, Pell Grant eligibility is based on parents' income, while for independent students, it is based on students' income (plus their spouses' income, if married). This brief report answers the questions: (1) Has the percentage of students receiving Pell Grants changed over time?; and (2) Has students' median family income changed over time? The following figures of mathematical data are included: (1) Percentage of students who received Pell Grants, by dependency status: 1999-2000, 2003-04, 2007-08, and 2011-12; and (2) Median family income in constant (2010) dollars of Pell Grant recipients, by dependency status: 1999-2000, 2003-04, 2007-08, and 2011-12.