Since 2012, the Programme for International Student Assessment (PISA), an initiative of the Organisation for Economic Co-operation and Development (OECD), has been collecting data to evaluate the financial literacy of 15-year-old students in various countries. The triennial assessments provide an opportunity to study the determinants of financial literacy among the young and how it evolves over time. This article looks back at a decade of PISA financial literacy data and examines the four waves of student-level data collected so far (2012, 2015, 2018, and 2022). We document stylized facts across waves and provide guidance on using the test scores estimated from psychometric models.