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Usage Statistics

For assistance with any of these reports or for help with data problems, please contact [email protected].

Publisher/vendor Login Information for usage statistics at vendors’ sites (updated June 2025).

 

Annual Usage Reports

CDL compiles annual UC system-wide and campus-by-campus aggregated usage statistics for Tier 1 and Tier 2 journals and databases by calendar year. Most of the usage data included in the following reports are COUNTER compliant.

 

2024

Report Dates Covered Description
E-journal article downloads 01/01/2024 – 12/31/2024 UC system-wide and campus-by-campus aggregated usage data by e-journal package. 
Database usage report 01/01/2024 – 12/31/2024 UC system-wide and campus-by-campus aggregated usage data by database.
eBook usage report 01/01/2024 – 12/31/2024 UC system-wide and campus-by-campus aggregated usage data by eBook package.

2023

Report Dates Covered Description
E-journal article downloads 01/01/2023 – 12/31/2023 UC system-wide and campus-by-campus aggregated usage data by e-journal package. 
Database usage report 01/01/2023 – 12/31/2023 UC system-wide and campus-by-campus aggregated usage data by database.
eBook usage report 01/01/2023 – 12/31/2023 UC system-wide and campus-by-campus aggregated usage data by eBook package.

2022

Report Dates Covered Description
E-journal article downloads 01/01/2022 – 12/31/2022 UC system-wide and campus-by-campus aggregated usage data by e-journal package. 
Database usage report Forthcoming Forthcoming
eBook usage report 01/01/2022 – 12/31/2022 UC system-wide and campus-by-campus aggregated usage data by eBook package.

2021

Report Dates Covered Description
E-journal article downloads 01/01/2021 – 12/31/2021 UC system-wide and campus-by-campus aggregated usage data by e-journal package. 
Database usage report Forthcoming Forthcoming
eBook usage report 01/01/2021 – 12/31/2021 UC system-wide and campus-by-campus aggregated usage data by eBook package.

2020

Report Dates Covered Description
E-journal article downloads 01/01/2020 – 12/31/2020 UC system-wide and campus-by-campus aggregated usage data by e-journal package. 
Database usage report Forthcoming Forthcoming
eBook usage report Forthcoming Forthcoming

2019

Report Dates Covered Description
E-journal article downloads 01/01/2019 – 12/31/2019 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2018 as well.
Database usage report Forthcoming Forthcoming
eBook usage report Forthcoming Forthcoming

2018

Report Dates Covered Description
E-journal article downloads 01/01/2018 – 12/31/2018 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2017 as well.
Database usage report Forthcoming   Forthcoming
eBook usage report Forthcoming   Forthcoming

2017

Report Dates Covered Description
E-journal article downloads   Forthcoming   Forthcoming
Database usage report   Forthcoming   Forthcoming
eBook usage report   Forthcoming   Forthcoming

2016

Report Dates Covered Description
E-journal article downloads 01/01/2016 – 12/31/2016 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2015 as well.
Database usage report 01/01/2016 – 12/31/2016 UC system-wide and campus-by-campus aggregated usage data by database. Includes consortium-level data for calendar year 2015 as well.
eBook usage report 01/01/2016 – 12/31/2016 UC system-wide and campus-by-campus aggregated usage data by eBook package. Includes consortium-level data for calendar year 2015 as well.

2015

Report Dates Covered Description
E-journal article downloads 01/01/2015 – 12/31/2015 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2014 as well.
Database usage report 01/01/2015 – 12/31/2015 UC system-wide and campus-by-campus aggregated usage data by database. Includes consortium-level data for calendar year 2014 as well.
eBook usage report 01/01/2015 – 12/31/2015 UC system-wide and campus-by-campus aggregated usage data by eBook package. Includes consortium-level data for calendar year 2014 as well.

2014

Report Dates Covered Description
E-journal article downloads 01/01/2014 – 12/31/2014 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2013 as well.
Database usage report 01/01/2014 – 12/31/2014 UC system-wide and campus-by-campus aggregated usage data by database. Includes consortium-level data for calendar year 2013 as well.
eBook usage report 01/01/2014 – 12/31/2014 UC system-wide and campus-by-campus aggregated usage data by eBook package. Includes consortium-level data for calendar year 2013 as well.

2013

Report Dates Covered Description
E-journal article downloads 01/01/2013 – 12/31/2013 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2012 as well.
Database searches report 01/01/2013 – 12/31/2013 UC system-wide and campus-by-campus aggregated usage data by database. Includes consortium-level data for calendar year 2012 as well.
eBook usage report 01/01/2013 – 12/31/2013 UC system-wide and campus-by-campus aggregated usage data by eBook package. Includes consortium-level data for calendar year 2012 as well.

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2012

Report Dates Covered Description
E-journal article downloads 01/01/2012 – 12/31/2012 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2011 as well.
Database searches report 01/01/2012 – 12/31/2012 UC system-wide and campus-by-campus aggregated usage data by database. Includes consortium-level data for calendar year 2011 as well.
eBook usage report 01/01/2012 – 12/31/2012 UC system-wide and campus-by-campus aggregated usage data by eBook package. Includes consortium-level data for calendar year 2011 as well.

2011

Report Dates Covered Description
E-journal article downloads 01/01/2011 – 12/31/2011 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2010 as well.
Database searches report 01/01/2011 – 12/31/2011 UC system-wide and campus-by-campus aggregated usage data by database. Includes consortium-level data for calendar year 2010 as well.
eBook usage report 01/01/2011 – 12/31/2011 UC system-wide and campus-by-campus aggregated usage data by eBook package. Includes consortium-level data for calendar year 2010 as well.

2010

Report Dates Covered Description
E-journal article downloads 01/01/2010 – 12/31/2010 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2009 as well.
Database searches report 01/01/2010 – 12/31/2010 UC system-wide and campus-by-campus aggregated usage data by database. Includes consortium-level data for calendar year 2009 as well.
Springer e-books usage summary reports 01/01/2010 – 12/31/2010 Springer e-book usage analysis by language collection, subject collection, by book type and by UC campus.

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2009

Report Dates Covered Description
E-journal article downloads 01/01/2009 – 12/31/2009 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2008 as well.
Database searches report 01/01/2009 – 12/31/2009 UC system-wide and campus-by-campus aggregated usage data by database. Includes consortium-level data for calendar year 2008 as well.
Springer e-books usage summary reports 01/01/2009 – 12/31/2009 Springer e-book usage analysis by language collection, subject collection, by book type and by UC campus.
Scopus usage report 02/01/2009 – 07/31/2009 Scopus database usage summary by campus. Includes searches, results, and linking usage.

2008

Report Dates Covered Description
E-journal article downloads 01/01/2008 – 12/31/2008 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2007 as well.
Database searches and sessions 01/01/2008 – 12/31/2008 UC system-wide and campus-by-campus aggregated usage data by database. Includes consortium-level data for calendar year 2007 as well.
E-books section downloads 01/01/2008 – 12/31/2008 UC system-wide and campus-by-campus aggregated usage data by e-book package. Includes consortium-level data for calendar year 2007 as well, if available.
Springer e-books usage summary reports 01/01/2008 – 12/31/2008 Springer e-book usage summary reports by campus and by collection.

2007

Report Dates Covered Description
E-journal article downloads 01/01/2007 – 12/31/2007 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2006 as well.
Database searches and sessions 01/01/2007 – 12/31/2007 UC system-wide and campus-by-campus aggregated usage data by database. Includes consortium-level data for calendar year 2006 as well.

Tier 1 & Tier 2 Databases Special One Time Review Project:

Searches by Campus

 01/01/2007 – 12/31/2007 UC system-wide and campus-by-campus aggregated usage data by database. Includes major Tier 1 and Tier 2 databases

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2006

Report Dates Covered Description
E-journal article downloads 01/01/2006 – 12/31/2006 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2005 as well.
Database searches and sessions 01/01/2006 – 12/31/2006 UC system-wide and campus-by-campus aggregated usage data by database. Includes consortium-level data for calendar year 2005 as well.

2005

Report Dates Covered Description
E-journal article downloads 01/01/2005 – 12/31/2005 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2004 as well.
Database searches and sessions 01/01/2005 – 12/31/2005 UC system-wide and campus-by-campus aggregated usage data by database. Includes consortium-level data for calendar year 2004 as well.

2004

Report Dates Covered Description
E-journal article downloads 01/01/2005 – 12/31/2004 UC system-wide and campus-by-campus aggregated usage data by e-journal package. Includes consortium-level data for calendar year 2003 as well.
Database searches and sessions 01/01/2004 – 12/31/2004 UC system-wide and campus-by-campus aggregated usage data by database. Includes consortium-level data for calendar year 2003 as well.

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FY 2002 – 2003

Report Description
E-journal article viewed by campus A CDL compiled report for July 2002 – June 2003.
Database searches by campus A CDL compiled report for July 2002 – June 2003.
CDL key indicators of collections and use A CDL compiled report for July 1, 2002 – June 30, 2003. Discontinued after June 30, 2003.

FY 2001 – 2002

Report Description
E-journal article viewed by campus A CDL compiled report for July 2001 – June 2002.
Database searches by campus A CDL compiled report for July 2001 – June 2002.
CDL key indicators of collections and use A CDL compiled report for July 1, 2001 – June 30, 2002.

2001

Report Description
E-journal article viewed by campus A CDL compiled report for January – June 2001.
Database searches by campus A CDL compiled report for January – June 2001.

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FY 2000 – 2001

Report Description
CDL key indicators of collections and use A CDL compiled report for July 1, 2000 – June 20, 2001

2000

Report Description
E-journal article viewed by campus A CDL compiled report for January – December 2000.
Database searches by campus A CDL compiled report for January – December 2000.
Elsevier journal usage by title Prepared for the Joint Steering Committee on Shared Collections (JSC). August 2000.
CDL key indicators of collections and use A CDL compiled report for January – December 2000.

1999

Report Description
Statistical profile of the CDL Includes data organized by campus
Database and e-journal usage by campus Prepared for the JSC June 2000 meeting

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