No. The problem is the way it is written. Perhaps intentionally. It did not say that 69% of the abuse was by mothers and 14% by fathers. There could have been 10,000 cases of abuse by fathers and 14% of those 10,000 cases was of their foster sons. There might have only been 20 cases of abuse by mothers as contrasted with the thousands by fathers.
Somehow I think the MSM doesn't want to acknowledge that thousands of gays are abusing young boys.They don't want you to know the true incidence of this abuse - hence they provide confusing statistics.
But it did say 34% of the sexual abuse committed by both fathers and mothers was homosexual in nature, with figures of 14% and 69% for fathers and mothers individually. Using a little algebra I was able to show that this implies that 74% of the homosexual abuse was by mothers.
If I took your figures, there would be 1400 cases of homosexual abuse committed by fathers (14% of 10000) and about 14 committed by mothers (69% of 20). Then the combined percentage of homosexual abuse cases would be 1414/10020 or roughly 14.1%.
But the article says that 34% of all abuse cases were homosexual in nature. Either the figures in the article or wrong or more women must be abusing foster daughters.