I am sure that there is a rough figure. However the attacks now are of mass scale, planes flown into buildings trucks with bombs blowing up killing hundreds. I don't believe past hate attacks have amounted to the magnitude of recent jihad attacks. Yes both are equally sick but these attacks are of mass targets dispite gender, race or age.
A rough figure, sure. But again, we'll never know. That includes all the women and children who were raped, etc. I'm not sure if it matters whether murdering specific people is any better than targeting people of any gender. The Christians, Muslims and Jews have killed more people in the name of religion than probably any other cause throughout mankind's history. But when it comes down to it, murder is murder. Those two boys murdered four innocent people in the name of "something." It's the same as any KKK member murdering an African American in the name of "something." Their terrorism both resulted in the deaths of innocent people.