I don't think this is possible in WoS without pulling each paper's citation data and assembling it manually, and I don't think you want to do that!
It is possible to do this with Scopus, however:
- select all search results
- "view cited by"
- filter by year
Note, however, that citation numbers in Web of Science and Scopus are not directly comparable, as Scopus indexes many more items. So if you were to use this, you'd want to make sure all your data came from the same source.