Analysis of the 2014 figures shows that roughly 60% of all divorces in England and Wales cite either adultery or unreasonable behaviour (66,588).
Responding to the data, Nigel Shepherd, National Chair of campaigning family law organisation Resolution, said:
"The latest figures from the Office of National Statistics show that both divorce numbers and the divorce rate have fallen. As the ONS highlight, this could be due to both the rise in the number of cohabiting couples, and the reduction in the number of weaker relationships progressing to marriage as a result.
"For those 111,169 of couples that did divorce however, we know that nearly two-thirds will have apportioned blame – whether they wanted to or not. At Resolution, we believe in a better way for separating couples that allows them to divorce without blame, conflict or argument. Over 90% of our members support a move to No Fault Divorce, and last week 150 family lawyers gathered in Parliament to meet with MPs and lobby for change.
“We are pleased with the positive reception our calls for no fault divorce received among MPs and we will continue our call for this much required, widely supported legislative change.
"Other statistics recently released shows that the number of cohabiting couples has also risen - this means it is even more important that they have some basic rights under the law should they separate."