year,n_works,n_refs_declared,n_internal,n_external
2018,642849,11636120,250426,10382501
2019,695369,13742477,1140570,11351646
2020,709083,15693875,2472715,11781999
2021,711244,18149160,4123503,12233358
2022,699548,17415217,5007511,10694227
2023,785194,19017108,6602036,10524219
2024,901654,19707017,7830508,10044195
2025,1065828,18600370,8532009,9003120
2026,901651,9809537,5195458,4595776