This article gives no indication as to how that figure is calculated... There is however an important message - only 14% of separating parents are aware of Family Mediation, as an option to reach decisions when they separate. 

Help spread the word, during Family Mediation Week. Retain control by choosing Family Mediation. It is less confrontational, more conciliatory, and can costs thousands of pounds less, leaving more money for the family's future.  If you know anyone who is separating from their partner, and decisions need to be made, suggest finding out more about Family Mediation.