These graphs highlight trends emerging from data collected as part of the annual ARL Statistics survey. Click on the links below to download the graph or data table.
ARL University Research Library Investments 2017–18 (PDF), (XLS)
ARL Non-University Research Library Investments 2017–18 (PDF), (XLS)
Service Trends in ARL Libraries 1998–2018 (PDF), (XLS)
Supply and Demand in ARL Libraries 1998–2018 (PDF), (XLS)
Expenditure Trends in ARL Libraries 1998–2018 (PDF), (XLS)
Resources per Student in ARL University Libraries 1998–2018 (PDF), (XLS)
Ongoing Resources vs Total Materials Expenditures – Yearly Increases in Average Expenditures 1998–2018 (PDF), (XLS)
Total Enrollment at ARL Universities, 1998–2018 (PDF), (XLS)
Library Expenditures as a Percent of Total University Expenditures, 1982–2017 (PDF), (XLS)