Here are the AP score distributions:
https://apscore.collegeboard.org/scores/about-ap-scores/score-distributions//
Highest percentage of 5 scores:
66.1 Chinese
48.0 Japanese
40.4 calculus BC
37.4 physics C E&M
30.2 physics C mechanics
Highest percentage of 1 scores:
30.8 physics 1
28.6 human geography
26.5 environmental science
25.5 US history
24.7 macroeconomics