For the purpose of significantly improving comparability, sp00n, who is active on GitHub and Hardwareluxx, among others, has compiled many benchmark results for different Cinebench versions.
More results are available there for Cinebench R15, R20, R23, and 2024. He makes these available for download on his GitHub repository:
https://github.com/sp00n/cinebench_scores (ZIP-Archive)
To use the downloaded text files, copy the ones that match your version to the “cb_ranking” subfolder in the respective program directory. Then simply start Cinebench and the list of comparison results should be considerably longer.