I'm experimenting with the API, trying to get the tags used in the last month on Stack Overflow, and it seems like some tags are missing. For example, I don't get anything for "jquery": http://api.stackexchange.com/docs/tags#fromdate=2013-10-01&todate=2013-11-01&order=desc&sort=popular&inname=jquery&filter=default&site=stackoverflow&run=true
On the other hand, if I look here - https://stackoverflow.com/tags and put "jquery" in the "Type to find tags" field I get "401 asked today". The number obviously may differ based on the day, but it's certainly not zero for the entire month.
What am I missing?