year,n_works,n_refs_declared,n_internal,n_external
2018,561564,8855582,213113,7818955
2019,600167,10444150,936000,8461027
2020,612005,11934137,2036362,8691623
2021,604393,13898820,3412614,8964271
2022,610670,13286136,4067878,7764193
2023,678150,14786528,5422214,7738307
2024,785101,15367804,6398357,7396772
2025,973274,14701560,7005817,6786828
2026,977914,8293086,4444908,3831590