Life expectancy is given for particular year


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送交者: HunHunSheng 于 2007-05-25, 12:22:59:

回答: 但是这个战争是过去的战争 由 wasguru 于 2007-05-25, 12:20:16:

The babies born in that year are expected to live longer than that but since there is no future data
yet so it is meaningless to predict. So life expectacny
scited in yearbook etc is always for the people
who died in that year. If your birth year
is close to the people who died in that year, then
you use it



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