Another way of measuring is to compare China to the rest of the world’s population. To do this, the best measure is not the average as, for well known statistical reasons, averages covering wide ranges are excessively affected by small numbers of extreme values. This is confirmed very clearly by world data. Only 25 per cent of the world’s population has a GDP per capita above the global average and 75 per cent have one below it. A better, and the standard, measure of incomes is to make a comparison to the median – the exact mid-point.
In 1978 China’s GDP per capita was only 42 per cent of the median for the rest of the world’s population. By 2010 China’s GDP per capita was 289 per cent of the median.
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