Life expectancy at birth is the average number of years a newborn is expected to live, if the prevailing patterns of mortality at the time of her/his birth were to stay the same throughout her/his life. Life expectancy at 65 is the average number of years a person at the age of 65 is expected to live, if the prevailing patterns of mortality at the time when she/he has reached the age of 65 were to stay the same throughout the rest of her/his life.
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