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jajariri
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I don’t quite agree with the solution. 3rd part assumes a yearly increase every year, and rate of increase based on last year. however, annual increase can't be necessarily considered with variable base, base year can be clearly assumed as 1989 like it happens in surveys.
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Nick101204
I don’t quite agree with the solution. 3rd part assumes a yearly increase every year, and rate of increase based on last year. however, annual increase can't be necessarily considered with variable base, base year can be clearly assumed as 1989 like it happens in surveys.

“Annual percentage rate of increase remained constant” means the nest count grows by the same percentage each year, with each year’s growth based on the count at the start of that year.
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