To clarify some of the stats:
BCS tells us that there are around 94,000 incidents which occur each year where the victim defines the experience as rape. Given the numbers of women who do not 'name' their experience as rape, the true figure (IMO) is probably higher still. This figure also excludes victims aged under 16 and over 59 and some populations where we know the number of women who have been raped is disproportionately higher (eg the female prison population, homeless women, care homes for vulnerable adults, etc)
This does not equate to 100,000 victims because some are repeat rapes: the number of victims per annum is around 55,000.
Only 11% of victims of a serious sexual assualt reported that assualt to the police, while 40% had never told anyone that they had been assaulted.
Annual number of rapes reported to Police (women 16-59): 8,487
Annual number of rapes reported to Police (women under 16) ? c. 4300
Rapes reported to the police that end up in a criminal conviction: around 6% (it varies by a few decimal places each year)
BUT around half of these convictions are for a lesser charge than rape
If the case gets to court, then the conviction rate (for both rape or other offence) is around 58%.
(All the above data is from the BCS apart from the final three paragraphs where the data originates with the Crown Prosecution Service.)
In other words, the problem in the 'system' is not (at the moment) with juries. Whether this is because of the prosecution 'cherry-picking' winnable cases or the police carrying out ineffective investigations is the subject of much heated debate with every point in the system pointing the finger at someone else - most usually (surprise!) at the victim. My own view is that almost every point in the system bears some responsibility. I also think that others (the media, prevailing social attitudes towards women and their 'proper' role as well as others bear some responsibility too).