Charity Rape Crisis England said that releasing data on rape cases reflected a commitment to transparency and scrutiny of police practice.
Spokeswoman Katie Russell said: "Nonetheless, Rape Crisis is still extremely concerned by the persistently high levels of 'no-criming' today's data reveals, as well as by the huge disparities in statistics between different police forces."
This leaves us wondering how many more reports it will take before we see a real and marked improvement in criminal justice for rape survivors.
– Charity Rape Crisis England spokeswoman Katie Russell
She said that the figures show that little has changed since a 2012 report from Her Majesty's Inspectorate of Constabulary (HMIC), which highlighted concerns around inconsistent and inadequate recording and investigating of sexual offences.
Lincolnshire Police had the highest "no-criming" rate for adult rapes - that is, an offence initially recorded as rape, but then declassified - at 33%, compared with Cumbria, which had the lowest no-criming rate at 3%. The average no-criming rate is 12%.
: "The wide disparities between different areas' reporting, detection and 'no crime' rates may indicate that the culture of scepticism remains in some police forces.
"This is not a surprise to us. Our member organisations know how deep disbelief and victim-blaming goes in institutions and communities.
"But the police play a critical role enabling rape survivors to access justice, so these disparities and attitudes must be urgently tackled."
– Professor Liz Kelly, chair of the End Violence Against Women coalition.
Rape charities and women's rights groups said data, which was pulled together for the first time by the cross-Government, multi-agency Rape Monitoring Group (RMG), revealed disparities and attitudes which must be "urgently tackled".
A postcode lottery in the way rape cases are handled by police has been highlighted by figures showing wide variations between forces across England and Wales, it is claimed.
Differences in the rate of recorded rapes, charges or cautions for the offence and records later declassified as a "no-crime" incident have raised fears of a "culture of disbelief" among some of the 43 forces covered by the data.
Among key contrasts, Northamptonshire Police had the highest rate of recorded rape at 34.8 per 100,000 adults in the year to March 2013, while Durham Police had the lowest at 9.8 per 100,000 adults. The average is 22 rapes recorded per 100,000 adults.
There were some measures already in place, he explained: "We put training in place to make sure that everyone who potentially comes into contact with that person has the knowledge to put them to the specialist."
A survey of 1,000 adult women in the UK found that 16 percent of respondents said they have had sex against their will. Of these:
Only 78% did not report it to police
26% did not think there was a strong chance of prosecution
18% did not think there was enough support from the legal system to help them through the process
The latest national figures from the Office for National Statistics estimate that only 16% of the 95,000 rapes that occur in the UK annually are reported, and that only 1% of these end in a conviction.