| Closed Access | Embargo | Metadata Only Access | Open Access | Restricted | Unknown | Total | |
|---|---|---|---|---|---|---|---|
| Total | 30 | 48 | 521 | 1558 | 1064 | 55 | |
| 2026 | - | 1 | 29 | 46 | 12 | 1 | 89 |
| 2025 | 2 | 10 | 82 | 129 | 40 | 1 | 264 |
| 2024 | 5 | 27 | 27 | 248 | 137 | 2 | 446 |
| 2023 | 1 | 7 | 53 | 291 | 188 | 11 | 551 |
| 2022 | 2 | - | 56 | 238 | 180 | 5 | 481 |
| 2021 | 3 | 1 | 56 | 249 | 141 | 12 | 462 |
| 2020 | 9 | 2 | 104 | 212 | 189 | 8 | 524 |
| 2019 | 8 | - | 114 | 143 | 172 | 15 | 452 |
| not yet published | - | - | - | 2 | 5 | - | 7 |