Defense officials have been quoted as saying that Mr. Obama will call for an initial withdrawal of 5,000 troops, followed by an additional 5,000 by the end of 2011.

媒体援引数名国防部官员的话说，奥巴马将提出先撤离5000名军人，随后在2011年底前再撤出5000人。

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If the benchmark falls between 12 and 20, where he considers the market fairly valued, the initial withdrawal would be 5%.

WSJ: Say Goodbye to the 4% Rule for Retirement

Using historical returns and assuming a portfolio of 60% stocks and 40% bonds, he worked out three rules for determining a "safe" initial withdrawal rate and then adjusted for inflation annually.

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