Selected Answer
I can't find that class or id in the document. I think that the problem here will be that you are trying to import data that is loaded via javascript when the user views it in a browser and, from my research, there doesn't seem to be a good work-around for this.
You could try to find another source, say an xml file that is often updated and then download that file via a query into Excel.
Also, here is another version of the web query code that you might like: Import Web Data into Excel with VBA/Macros