Heres a link for you that should back up William Joyce's claim. This is the 2006 DOJ report. Youll notice the chart on page 18 shows white men committing 32.3% of all rapes on women, while black men commit 61.8%.
http://www.ojp.usdoj.gov/bjs/pub/pdf/cvus0602.pdf
You don't handle crime stats any more effectively than William Joyce does. The table, on page 18 as indicated, is titled:
Table 30. Personal crimes of violence, 2006: Download spreadsheet version
Percent of victimizations involving strangers,
by gender and race of victims, and type of crime
The table that you are referencing shows that 61.8% of rapes of black women involve strangers, while only 32.3% of white women who are raped are raped by strangers. What that means is that white women are much more likely to be raped by someone they previously knew than black women.
Y'all are so eager to believe the worst about black people that you will look at a survey like this and not even read the title.
This data is from the the National Crime Victimization Survey. It's an annual phone survey funded by the USDOJ. It compares the percentage of people who state that they were victimized in any given year to national crime totals (the FBI uses a system called UCR - Uniform Crime Reporting System to measure numbers of crime per year).
NCVS is based upon self-reporting data by victims, UCR relies upon police report totals from police agencies. However, because not all agencies report crimes to UCR, and because only about half of all violent are even reported to police, the DOJ instituted NCVS to get a handle on the true level and extent of crime in the U.S.
However, because NCVS relies upon victim self-report information, there isn't any perpetrator demographic information included in that data.
So, for instance, if you page up to page 16, you'll see crime totals, and they are split out by the number of crimes committed by strangers, and the number of crimes committed by a person known to the victim. You'll see that in 2006, there were 260,000 rapes. Of those, 100,000 or so were committed by strangers, and 160,000 were committed by people known to the victim.
The table you linked, table 30, on page 18, shows the differences between white women and black women in regards to perpetrators. White women tend to know their rapists, black women (by a 2 to 1 margin), are raped by strangers.
My point still stands...white women are far more at risk from white men they know than from black men they do not know.
Learn to deal with crime stats, then get back to me.