Report from the official Swedish BRÅ shows that the number of rape-crimes rose by 257 p.c. from 1996 to 2006. This implies an yearly increase of 9.9 p.c. Drug-rape has been included in rape-crimes from 2005, but that does not alter the picture.
Now we need the distribution of criminals on Swedes on the one side and on the other side the group of foreign citizens, naturalized foreigners and the offspring of the latest (but Sweden does not publish that).
The distribution when we look at Danish (next to Sweden) relations:
Extracts from: http://danmark.wordpress.com/2007/01/27/unge-med-anden-etnisk-baggrund-end-dansk-truer-med-vold-og-terroriserer-med-sms-er/ (in Danish):
“That 40 p.c. of all convicted for rape-crimes are immigrants or their descendants, that 50 p.c. of all criminals in our capital Copenhagen have another etnic background than Danish, that 80 p.c. of all convictions concerning violence commited by youngsters less than 18 years are those of young second- and third-generation of immigrants (in 2004 82 p.c. (in Danish)), that the same group occupy 70 p.c. of all the country’s special secured institutions for young criminals, that the jails, the prisons (including the new-built ones) and the centres of crises are filled to the limit with persons from the mentioned group, and the violence has increace by 57 p.c. in just the last two year in the schools could perhaps indicate that something is totally wrong or some does not match up in the information we are given…”
The foreigner share is larger in Sweden than in Denmark, so the share of rape-crimes, assumed the pattern of actions are pretty much the same in the two countries, definitely is larger than 40 p.c. in Sweden.