Originally Posted by
m0nkfish
Not sure where you are getting that statistic from. The chart showing the 'white' group line being under all other ethnic groups up to around the age of 25 is showing the proportion of that ethnic group who are within that age range, I think the clue is the fact that if you add the percentage numbers up for any age range you don't get 100%.
Note also that the 'White' line closely tracks the 'All' line across all age groups. ie All the population is white to a close approximation.