All HFLAV plots, tables and the website itself are licensed under the CC BY 4.0 licence. This means you are free to: copy and redistribute the material in any medium or format; remix, transform, and build upon the material for any purpose, even commercially. You must give credit through a citation to arXiv:2206.07501 and indicate if changes were made. A suggested bibtex record is

@article{HFLAV:2022pwe,
    author = "Amhis, Y. and others",
    title = "{Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021}",
    eprint = "2206.07501",
    archivePrefix = "arXiv",
    primaryClass = "hep-ex",
    doi = "10.1103/PhysRevD.107.052008",
    journal = "Phys. Rev. D",
    volume = "107",
    pages = "052008",
    year = "2023"
}