I could only find 2002....and as much as I dispise the politics of SF....there are many many cities with much higher crimes indices then SF......and most big cities in Texas rank higher...so who knows?????.
http://www.bestplaces.net/docs/studies/crime3.aspx
Its culture that causes certain areas to be more criminal, not the availability of firearms or lack thereof. Nevertheless, even if I lived in a crime free paradise, I would like to have my protection just in case a thug passes through, whether they be a criminal or a representative of a despotic government.