Anon wrote "There's also the problem of defining an anti-Semitic incident."
I agree, but there is no reason to think that the definition changed between 1984 and 2007, is there? Nor is the period 2005-2007 a period of more anti zionist statements than usual (say, as compared to after the first lebanon war or after the Israeli bombing of the Iraq nuclear facility.

As to confusing antisemitism with antizionism, that problem is not limited to Jewish issues. I really mean Nazis when I occassionally refer derogatorily to 1930s era germans.