I want to know the answer to the following question:
Which race was growing faster after the First World War?
All the background I'm provided with is that "After the First World War, however, it became apparent that the number of mixed-race people was growing at a faster rate than the white population, and by 1930 fear of the "half-caste menace" undermining the White Australia ideal from within was being taken as a serious concern.". Is that enough to answer the question?