Your conclusions based on this pie graph are based on an assumption that the income groups are static over time. However, most people move through different income groups as they age.
Your conclusions are akin to saying that if the average race times of the top 10 runners of a marathon have decreased over a hundred years then that means that there are 10 really, really fast 120 year-olds running an annual race.
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Your conclusions based on this pie graph are based on an assumption that the income groups are static over time. However, most people move through different income groups as they age.
Your conclusions are akin to saying that if the average race times of the top 10 runners of a marathon have decreased over a hundred years then that means that there are 10 really, really fast 120 year-olds running an annual race.
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