"The growing use of unnatural birth control since 1913 has been accompanied by an almost 500% rise in the divorce rate. Among Catholics, the divorce rate formerly was much lower than the national average, but the divorce rate has risen sharply since the mid-1960s when Catholics began using unnatural birth control at about the same rate as the rest of a culture that is no longer Christian. Even if other factors have contributed to the breakdown of family stability, there are ample indicators that the use of unnatural birth control has been a significant factor."