What is not a fallacy, however, is that violence against women has been at epidemic levels for years. The World Health Organization, based on data from 80 countries, reports that 35 percent of women worldwide have experienced either physical and/or sexual intimate partner violence or non-partner sexual violence in their lifetime. The National Sexual Violence Resource Center reports that 1 in 5 women in the U.S. will be raped during their lifetime. Furthermore, in the U.S., 80 percent of the women who are raped know their attackers, and, with regard to the sexual abuse of children, 34 percent of abusers are family members. Thus, the primary perpetrators of violence against women and girls are not from some "other" group; they are men within the victim's family or social circle.