
Open Access statistics for University of California System, United States, covering academic research published from 2000 to 2024. Read More.
Open Access Percentage
51%
Total
Publications
1.3M
Total Open
Publications
686K
Total
Citations
70M
Open Access
Percentage
51%
Total
Publications
1.3M
Total Open
Publications
686K
Total
Citations
70M
Breakdown
Publisher Open
15%
Both
22%
Other Platform Open
12%
Closed
51%
Percentage of Open Access over time
Publisher Open
Both
Other Platform Open
Closed
Volume of Open Access over time
Open
Closed
Publisher Open
OA Journal 44%
205K
Hybrid 26%
123K
No Guarantees 30%
143K
Other Platform Open
Domain 52%
237K
Institution 33%
153K
Other Internet 31%
141K
Preprint 15%
68K
Public 3%
13K
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
PubMed Central | Domain | 237K |
Unknown Repository | Other Internet | 91K |
U.S. Department of Energy Office of Scientific and Technical Information - OSTI OAI | Institution | 85K |
arXiv | Preprint | 64K |
DOI | Other Internet | 60K |
California Digital Library - eScholarship | Institution | 13K |
Le Centre pour la Communication Scientifique Directe - HAL - Diderot | Institution | 12K |
Europe PMC | Domain | 12K |
Figshare | Public | 12K |
DANS - Data Archiving and Networked Services | Institution | 9.2K |