arXiv or MathSciNet statistics by MSC classes and time I suppose I'm not the first person who came across this idea. I would like to compare math branches by means of numbers of articles published. I have access to two large math article indices: AMS' MathSciNet and arXiv.

My question is: Is it possible (in either of them) to get the information how many articles were published with a given MSC class, year by year?
If you use R, you can use this script I wrote for scraping ArXiv metadata.