year,n,n_sources,hhi,top1_share
2018,26485,26485,0.003955,0.03931
2019,28645,28645,0.004828,0.04242
2020,31163,31163,0.005534,0.05049
2021,32830,32830,0.004938,0.05177
2022,32698,32698,0.004458,0.04746
2023,36173,36173,0.005058,0.05386
2024,40351,40351,0.006019,0.064
2025,44706,44706,0.009347,0.08735
2026,37470,37470,0.0359,0.18338