Kaplan, Jacob. Jacob Kaplan’s Concatenated Files: National Incident-Based Reporting System (NIBRS) Data, 1991-2024. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2025-08-21. https://doi.org/10.3886/E118281V11
Kaplan, Jacob. Jacob Kaplan’s Concatenated Files: Uniform Crime Reporting Program Data: Offenses Known and Clearances by Arrest (Return A), 1960-2024. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2025-08-21. https://doi.org/10.3886/E100707V22
Kaplan, Jacob. Jacob Kaplan’s Concatenated Files: Uniform Crime Reporting (UCR) Program Data: Arrests by Age, Sex, and Race, 1974-2024. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2025-08-20. https://doi.org/10.3886/E102263V16
Kaplan, Jacob. Jacob Kaplan’s Concatenated Files: Uniform Crime Reporting Program Data: Law Enforcement Officers Killed and Assaulted (LEOKA) 1960-2024. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2025-08-20. https://doi.org/10.3886/E102180V15
Kaplan, Jacob. Jacob Kaplan’s Concatenated Files: Uniform Crime Reporting (UCR) Program Data: Supplementary Homicide Reports (SHR), 1976-2024. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2025-08-20. https://doi.org/10.3886/E100699V16
Kaplan, Jacob. Jacob Kaplan’s Concatenated Files: Uniform Crime Reporting (UCR) Program Data: Property Stolen and Recovered (Supplement to Return A) 1960-2024. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2025-08-16. https://doi.org/10.3886/E105403V11
Kaplan, Jacob. Jacob Kaplan’s Concatenated Files: Uniform Crime Reporting (UCR) Program Data: Arson 1979-2024. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2025-08-20. https://doi.org/10.3886/E103540V14
Kaplan, Jacob. Jacob Kaplan’s Concatenated Files: Uniform Crime Reporting (UCR) Program Data: Hate Crime Data 1991-2024. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2025-08-20. https://doi.org/10.3886/E103500V12
Kaplan, Jacob. California Jail Profile Survey 1995-2020. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2021-01-16. https://doi.org/10.3886/E104560V7
Kaplan, Jacob. United States Governors 1775-2020. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2021-01-16. https://doi.org/10.3886/E102000V3
Kaplan, Jacob . Jacob Kaplan’s Concatenated Files: Uniform Crime Reporting (UCR) Program Data: Human Trafficking 2013-2019. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2021-01-16. https://doi.org/10.3886/E117974V3
Kaplan, Jacob. Apparent Per Capita Alcohol Consumption: National, State, and Regional Trends 1977-2018. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2021-01-16. https://doi.org/10.3886/E105583V5
Kaplan, Jacob, Hoyos-Torres, Sebastian, Gur, Oren, Concannon, Connor, and Jones, Nick. Coronavirus (COVID-19) in Prisons in the United States, April - June 2020. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2020-06-26. https://doi.org/10.3886/E119901V1
Kaplan, Jacob. U.S. Customs and Border Protection Statistics and Summaries. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2021-01-16. https://doi.org/10.3886/E109522V5
Kaplan, Jacob. Annual Survey of State Government Finances 1992-2018. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2021-01-16. https://doi.org/10.3886/E101880V4
Kaplan, Jacob. Texas Commission on Jail Standards Data 1992-2017. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2018-07-14. https://doi.org/10.3886/E104643V1
Kaplan, Jacob. Annual Survey of Public Employment & Payroll (ASPEP) 1992-2016. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2021-01-16. https://doi.org/10.3886/E101399V6
Kaplan, Jacob. California Department of Corrections Data. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2021-01-16. https://doi.org/10.3886/E108602V2