Even more significant is the fact that the proportion of the population in the very obese category has increased.

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The new category is Northern Irish, which accounts for 21% of the population.

BBC: Northern Ireland has 'most difficult year' in decade

Keep in mind that we are talking about roughly 30% of the population when we consider those in this category.

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Kensington and Chelsea recorded 17, 300 fewer white British residents but the category "white other" now makes up 28% of the local population.

BBC: Why have the white British left London?

But because the problem affects only a tiny fraction of the flying population, we didn't include the category in our calculation.

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