The Catholic Church admits its system that has paid $276 million in compensation to thousands of people sexually abused as children is still not fair to victims and an independent scheme is needed.
Victims who have sought redress from the church in Australia have received an average of $91,000 in compensation.
But there are huge differences in the average amount paid by different Catholic Church authorities - from as little as $22,000 to as much as $901,000.
The church's Truth Justice and Healing Council chief executive Francis Sullivan says the data reinforces the need for an independent national redress scheme that takes the issue of compensation away from the church.
"Even though the church has paid $270 million and it took a long time to get its act together to do that, there's no doubt the system of paying people and compensating them is best done independently of the church through a national redress scheme," Mr Sullivan told AAP.
Australian church authorities have paid $276.1 million overall to child abuse victims, with the highest number of payments - 763, totalling $48.5 million - coming from the Christian Brothers order.
Among Catholic Church authorities that have made at least 10 compensation payments, the Jesuits have paid the highest average amount of $257,000.
The Daughters of Our Lady of the Sacred Heart order has only had nine payments but at an average of $901,000.
Mr Sullivan said the church's approach to handling redress claims has improved but victims are not consistently dealt with and do not have the same opportunities or payouts.
"Some congregations pay far more than others. Some dioceses pay far more than others.
"It's still not a fair system."
Further data from the child sex abuse royal commission's analysis of Catholic Church records, released on Thursday, showed 2854 abuse claims have resulted in monetary compensation for victims.
Almost 750 abuse claims were ongoing at the time of the survey.
The data showed 4445 people made claims to the church between 1980 and 2015.
The figure is conservative as the survey did not record the total number of allegations made to Catholic Church authorities in Australia and many victims never come forward.
Senior counsel assisting the commission Gail Furness SC said the total number of incidences of child sexual abuse in Catholic institutions is likely to be greater than the claims made.
"The royal commission's experience is that many survivors face barriers which deter them from reporting abuse to authorities and to the institution in which the abuse occurred," she said on Thursday.
The highest number of abuse claims - 219 - concerned the BoysTown residential care facility operated by the De La Salle Brothers in Beaudesert, Queensland from 1961 to 2001.
Mr Sullivan said the data showed massive drop-offs in clerical sex abuse and incidents in the school system since the 1970s.
Almost half the claims made to church authorities concerned schools.
