Here are a few statistics, with my comments inserted, from a 1998 study - I doubt much has changed in ten years.
Only
16% of rapes and sexual assaults are reported to the police (Rape in America: A Report to the Nation. 1992). In 1995 there were
97,460 rapes reported to law enforcement officials. At a 16% reporting rate, this means that there were actually closer to
649,733 rapes in the United States. Along the same lines, the number of rapes reported in New York state in 1996 was
20,911. At a 16% reporting rate, this means the actual number of rapes was closer to
139,406. (Computerized Criminal History, Feb. 1998)
The rate of false reports of rape is approximately
2 - 3% which is no different than that for other crimes. This is different than the
8% of reports which are unfounded. This means that in 8% of the rape cases reported the investigators or prosecutors deemed that the case was not prosecutable for any number of reasons. Only
2 - 3% of the reports however were fabricated stories.
The above is an important fact, since there is a tendency for men who are fearful of women 'crying rape' after the fact to exaggerate false reporting numbers. -B
In 1997,
68.3% were perpetrated by someone who knew the victim. (Bureau of Justice's National Crime Victimization Survey, 1997)
78% of women raped or physically assaulted since they turned 18 were assaulted by a current or former husband, live-in partner or date.
17% were victimized by an acquaintance,
9% by a relative other than a husband and only
14% were assaulted by a stranger. (National Violence Against Women Survey, 1998)
Notice, by far the largest number of adult rapes are perpetrated by former partners. There is little doubt in these cases that the motives are rage and vengeance. Although the study doesn't mention it, these are under-reported crimes, as women often get little support when accusing a former lover of rape. - B
Rape and sexual assault are not crimes that usually occur in dark alleys or in deserted areas at night. As a matter of fact
6 out of 10 sexual assaults occur in the home of the victim or the home of a friend, neighbor or relative. (Greenfeld, 1997)
43.4% of rapes and sexual assaults occur between the hours of 6PM and midnight Greenfeld, 1997) and about
two thirds occur between the hours of 6 PM and 6 AM (Greenfeld, 1997).
http://sa.rochester.edu/masa/stats.php