| 31. | More than two-thirds of that growth can be ascribed to a natural increase resulting from high fertility and birthrates.
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| 32. | To prevent the natural increase of a species by adverse modification of habitat suitable for expansion assuredly impairs breeding.
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| 33. | Natural increase of the population together with immigration from the south led to the settlement also in mountain areas.
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| 34. | In Mexico, Alvarez said he believed that the number of conversions heavily outweighed the rate of natural increase among members.
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| 35. | The natural increase in Europe's population is slowing and may start a steep decline within a few decades, researchers say.
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| 36. | Nonetheless, the rate of natural increase shew to be a more important component of the population growth in that period.
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| 37. | Population : 123, 337, 822 ( 2000 estimate ); average annual rate of natural increase : 2 . 6 percent.
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| 38. | By purchase and natural increase, the number of slaves had risen to 133 at the time of the 1860 census.
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| 39. | Slavery in the United States became, more or less, self-sustaining by natural increase among the current slaves and their descendants.
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| 40. | Net migration to the county between 2002 and 2006 was 48, 000, with a natural increase of 33, 000 people.
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