Of course, the DNA results don’t have any relevance to those situations where it is agreed a sexual encounter took place, and the only issue is whether the encounter was consensual or forced. Any of these where the rape accusation was false would raise your percentages.
Unfortunately, in these cases the truth is generally known only to the “rapist,” the “victim” and God.
Yes, unfortunate both for victims of rape who fail to prove their case because the jury thinks it is consensual and unfortunate for the victims of false accusations of rape (regardless of whether they are convicted or not). It is very unfortunate. The old Hebrew law making it hard to prove rape but then executing the rapist makes more sense in this light.