Respuesta :

Trim
In four years the population rose 153 - 147 = 6 million or 1 1/2 million each year.

Between 2008 and 1996 there are 12 years so the population would go up by 12 x 1 /1/2 = 18 million

153 + 18 milliion = 171 million in 2008

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