Open Access statistics for University of California System, United States, covering academic research published from 2000 to 2024. Read More.
Open Access Percentage
55%
Total
Publications
1.3M
Total Open
Publications
734K
Total
Citations
68M
Open Access
Percentage
55%
Total
Publications
1.3M
Total Open
Publications
734K
Total
Citations
68M
Breakdown
Publisher Open
14%
Both
22%
Other Platform Open
19%
Closed
45%
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 31%
147K
Hybrid 34%
165K
No Guarantees 35%
169K
Other Platform Open
Domain 58%
320K
Institution 35%
195K
Other Internet 28%
154K
Preprint 22%
123K
Public 6%
32K
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
PubMed Central | Domain | 315K |
Europe PMC | Domain | 186K |
University of California - eScholarship University of California | Institution | 96K |
California Digital Library - eScholarship | Other Internet | 94K |
arXiv | Preprint | 84K |
U.S. Department of Energy Office of Scientific and Technical Information - OSTI OAI | Institution | 32K |
DOI | Other Internet | 31K |
Semantic Scholar | Public | 24K |
bioRxiv | Preprint | 23K |
CiteSeer X | Other Internet | 20K |
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