And although 5000 more prosecutions were made in the months up till June, only 77 more attackers were found guilty in a trial by jury.
Shadow home secretary Yvette Cooper said that the government need to do more to get justice for victims.
‘These figures show the Government is failing to get justice for victims of sexual attacks and abuse,’ she said.
‘More sex offenders are getting away with it, and fewer victims are getting the justice and protection they need.’
Cooper blamed cuts to police officers and specialist prosecutors as part of the problem, saying that services are struggling to cope with the number of crimes.
‘It’s the same damaging trend in domestic violence and rape, where fewer victims are getting the justice they deserve and more perpetrators are getting away with it.’