| Closed Access | Embargo | Metadata Only Access | Open Access | Restricted | Unknown | Total | |
|---|---|---|---|---|---|---|---|
| Total | 26 | 50 | 424 | 1286 | 978 | 46 | |
| 2025 | 1 | - | 13 | 15 | 5 | - | 34 |
| 2024 | - | 31 | 22 | 201 | 127 | - | 381 |
| 2023 | 2 | 4 | 54 | 277 | 175 | 9 | 521 |
| 2022 | 2 | 6 | 51 | 220 | 175 | 4 | 458 |
| 2021 | 3 | 4 | 60 | 235 | 140 | 10 | 452 |
| 2020 | 9 | 5 | 110 | 200 | 185 | 9 | 518 |
| 2019 | 9 | - | 114 | 136 | 168 | 14 | 441 |
| not yet published | - | - | - | 2 | 3 | - | 5 |