| Closed Access | Embargo | Metadata Only Access | Open Access | Restricted | Unknown | Total | |
|---|---|---|---|---|---|---|---|
| Total | 30 | 48 | 515 | 1542 | 1043 | 83 | |
| 2026 | - | 1 | 30 | 46 | 12 | 1 | 90 |
| 2025 | 2 | 10 | 86 | 127 | 40 | 1 | 266 |
| 2024 | 5 | 26 | 26 | 243 | 135 | 1 | 436 |
| 2023 | 1 | 7 | 50 | 288 | 185 | 16 | 547 |
| 2022 | 2 | 1 | 55 | 236 | 179 | 8 | 481 |
| 2021 | 3 | 1 | 55 | 248 | 136 | 17 | 460 |
| 2020 | 9 | 2 | 104 | 210 | 183 | 14 | 522 |
| 2019 | 8 | - | 109 | 142 | 168 | 25 | 452 |
| not yet published | - | - | - | 2 | 5 | - | 7 |