It's extremely difficult to get accurate statistics on sexual assault of women across different countries. Some countries have very broad laws as to what constitutes rape and sexual assault while other countries define it very narrowly. For example - rape within marriage. There are also big discrepencies on reporting. In countries where a woman is "ruined" by rape, or considered "at fault" by her mere existence, there will be far fewer reports. I'm not sure it's true that most rape crimes in European countries are committed by Asians. In Sweden - that claim that it is some sort of "rape capital" is both controversial and misleading.
Comparing crime rates across countries is fraught with difficulties - this is well known among criminologists and statisticians, less so among journalists and commentators.
Sweden has the highest rape rate in Europe, author Naomi Wolf said on the BBC's Newsnight programme recently. She was commenting on the case of Julian Assange, the Wikileaks founder who is fighting extradition from the UK to Sweden over rape and sexual assault allegations that he denies.
Is it true? Yes. The Swedish police recorded the highest number of offences - about 63 per 100,000 inhabitants - of any force in Europe, in 2010. The second-highest in the world.
This was three times higher than the number of cases in the same year in Sweden's next-door neighbour, Norway, and twice the rate in the United States and the UK. It was more than 30 times the number in India, which recorded about two offences per 100,000 people.
On the face of it, it would seem Sweden is a much more dangerous place than these other countries.
But that is a misconception, according to Klara Selin, a sociologist at the National Council for Crime Prevention in Stockhol
m. She says you cannot compare countries' records, because police procedures and legal definitions vary widely.
"In Sweden there has been this ambition explicitly to record every case of sexual violence separately, to make it visible in the statistics," she says.
"So, for instance, when a woman comes to the police and she says my husband or my fiance raped me almost every day during the last year, the police have to record each of these events, which might be more than 300 events. In many other countries it would just be one record - one victim, one type of crime, one record."
The thing is, the number of reported rapes has been going up in Sweden - it's almost trebled in just the last seven years. In 2003, about 2,200 offences were reported by the police, compared to nearly 6,000 in 2010.
So something's going on.
But Klara Selin says the statistics don't represent a major crime epidemic,
rather a shift in attitudes. The public debate about this sort of crime in Sweden over the past two decades has had the effect of raising awareness, she says, and
encouraging women to go to the police if they have been attacked.
The police have also made efforts to improve their handling of cases, she suggests, though she doesn't deny that there has been some real increase in the number of attacks taking place - a concern also outlined in
an Amnesty International report in 2010.
"There might also be some increase in actual crime because of societal changes. Due to the internet, for example, it's much easier these days to meet somebody, just the same evening if you want to. Also, alcohol consumption has increased quite a lot during this period.
"But the major explanation is partly that people go to the police more often, but also the fact that in 2005 there has been reform in the sex crime legislation, which made the legal definition of rape much wider than before."
The change in law meant that cases where the victim was asleep or intoxicated are now included in the figures. Previously they'd been recorded as another category of crime.
So an on-the-face-of-it international comparison of rape statistics can be misleading.
Botswana has the highest rate of recorded attacks - 92.9 per 100,000 people - but a total of 63 countries don't submit any statistics, including South Africa, where a survey three years ago showed that one in four men questioned admitted to rape.