Anyone know where there's data on challenges over time? I could only find these two things: https://www.ala.org/advocacy/sites/ala.org.advocacy/files/content/

Anyone know where there's data on challenges over time? I could only find these two things: https://www.ala.org/advocacy/sites/ala.org.advocacy/files/content/banned/frequentlychallenged/challengesbytype/2010challengesbyyearv3.png https://www.ala.org/advocacy/sites/ala.org.advocacy/files/co... https://bookriot.com/statistics-of-censorship/ https://bookriot.com/statistics-of-censorship/ I have a feeling something more comprehensive and precise is out there but I don't know where to look. The ALA has a "field report" but they charge for it and I'm not even sure if it would have the content I'm looking for. Most of the data I can find is on the most frequently challenged books, and the reasons for doing so.