| Period | Documents | Attachments | Records |
|---|---|---|---|
| after 2024 | 0 | 0 | 0 |
| 2015 - 2025 | 183 | 2 | 828 |
| 2005 - 2015 | 230 | 0 | 1810 |
| 1995 - 2005 | 52 | 0 | 227 |
| 1985 - 1995 | 5 | 0 | 50 |
| 1975 - 1985 | 1 | 0 | 1 |
| 1965 - 1975 | 0 | 0 | 0 |
| 1955 - 1965 | 0 | 0 | 0 |
| 1945 - 1955 | 0 | 0 | 0 |
| 1935 - 1945 | 0 | 0 | 0 |
| 1925 - 1935 | 0 | 0 | 0 |
| 1915 - 1925 | 0 | 0 | 0 |
| 1905 - 1915 | 0 | 0 | 0 |
| before 1905 | 0 | 0 | 0 |
| Centre de recherche bretonne et celtique |  |
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