Then there was the question of laws forcing northern states to return escaped slaves to their owners.
VOA: special.2009.03.12
Then if you fast forward to 2005 and look at the average return that was posted for 2000,it was +1.2%.
如果把时间快进至2005,5年后公报的2000年平均收益,变成了1.2%
If we add one to the return, then you've got a number that's never negative and we can then use geometric returns.
然后加上1,你永远也得不到一个负数,然后我们对这个值求几何平均
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