Date rape is a form of acquaintance rape and dating violence. The two phrases are often used interchangeably, but date rape specifically refers to a rape in which there has been some sort of romantic or potentially sexual relationship between the two parties. Acquaintance rape also includes rapes in which the victim and perpetrator have been in a non-romantic, non-sexual relationship, for example as co-workers or neighbors. Since the 1980s, date rape has constituted the majority of rapes in some countries. It is particularly prevalent on college campuses, and frequently involves consumption of alcohol or other date rape drugs. The peak age for date rape victims is from the late teens to early twenties. A feature of date rape is that in most cases the victim is female, knows the perpetrator, and the rape takes place in the context of an actual or potential romantic or sexual relationship between the parties, or when that relationship has come to an end. The perpetrator may use physical or psychological intimidation to force a victim to have sex against their will, or when the perpetrator has sex with a victim who is incapable of giving consent, for example, because they have been incapacitated by alcohol or other drug. According to the United States Bureau of Justice Statistics (BJS), date rapes are among the most common forms of rape cases. Date rape most commonly takes place among college students when alcohol is involved or date rape drugs are taken. One of the most targeted groups are women between the ages of 16 and 24. The phenomenon of date rape is relatively new. Historically, date rape has been considered less serious than rape by a stranger. Since the 1980s, it has constituted the majority of rapes in some countries. It has been increasingly seen as a problem involving society's attitude towards women and as a form of violence against women. It is controversial, however, with some people believing the problem is overstated and that many date rape victims are actually willing, consenting participants, and others believing that date rape is seriously underreported and almost all women who claim date rape were actually raped.