Figure 1
Development of the total number of articles in OpenAPC since 30 July 2014 (creation of the aggregated APC data file on GitHub). Major ingestion events are marked separately
Figure 2
Overview of the OpenAPC metadata enrichment. Note how the existence of a single DOI in the input data is sufficient to bootstrap the whole process
Figure 3
Number of reported APC data sets per year
Figure 4
Spending distribution over fully and hybrid OA journals across the complete OpenAPC database
Table 1
Top ten publishers according to the amount of expenditure in OpenAPC
| Publisher | Expenditure | Number of articles |
|---|---|---|
| Springer Nature | €19,600,685 | 10,964 |
| Elsevier BV | €18,267,632 | 6,946 |
| Wiley Blackwell | €10.173.721 | 4,353 |
| Public Library of Science (PLOS) | €8,517,781 | 6,107 |
| Frontiers Media SA | €4,626,196 | 3,188 |
| Oxford University Press | €4,260,076 | 1,736 |
| American Chemical Society (ACS) | €3,467,146 | 1,311 |
| Copernicus GmbH | €2,300,447 | 1,736 |
| British Medical Journal (BMJ) | €2,277,943 | 1,024 |
| IOP Publishing | €2,232,080 | 1,497 |
Table 2
Top ten journals according to the amount of expenditure in OpenAPC
| Journal | Expenditures | Number of articles | oa/hybrid |
|---|---|---|---|
| PLOS ONE | €6,547,118 | 5,156 | oa |
| Scientific Reports | €2,354,821 | 1,695 | oa |
| New Journal Of Physics | €1,227,640 | 1,062 | oa |
| Frontiers In Psychology | €1,147,759 | 781 | oa |
| Nature Communications | €2,932,400 | 693 | oa |
| BMJ Open | €779,896 | 453 | oa |
| Atmospheric Chemistry and Physics | €673,856 | 417 | oa |
| Optics Express | €663,872 | 386 | oa |
| Nucleic Acids Research | €632,292 | 346 | oa |
| Cell Reports | €707,710 | 170 | oa |
Table 3
Springer Compact journals with an OA share of more than 50% in 2016 or 2017
| Journal | Year | Total number of articles | Number of open access articles | Number of offsetting articles | Open access share |
|---|---|---|---|---|---|
| Psychotherapie Forum | 2017 | 20 | 19 | 1 | 95.00% |
| Gynecological Surgery | 2017 | 30 | 28 | 2 | 93,33% |
| Integrating Materials | 2017 | 23 | 19 | 1 | 82.61% |
| Innovative Infrastructure Solutions | 2017 | 68 | 54 | 1 | 79.41% |
| Cambridge Journal of Evidence-Based Policing | 2017 | 12 | 8 | 1 | 66.67% |
| Journal of Remanufacturing | 2017 | 13 | 8 | 1 | 66.67% |
| Journal of World Prehistory | 2017 | 13 | 8 | 7 | 61.54% |
| medizinische genetik | 2017 | 44 | 26 | 1 | 59.09% |
| Artificial Intelligence and Law | 2017 | 24 | 14 | 11 | 58.33% |
| Liverpool Law Review | 2016 | 12 | 7 | 6 | 58.33% |
| Wiener klinische Wochenschrift Education | 2017 | 9 | 5 | 5 | 55.56% |
| The European Physical Journal H | 2017 | 22 | 12 | 5 | 54.55% |
| Ambio | 2017 | 127 | 67 | 10 | 52.76% |