但与2005年的基准相比，2007年此指数降低了3.66%，2006年减少了1.23%，这两年均没有达到每年的目标。

Compared with the 2005 benchmark, it reduced by 3.66 percent in 2007 and 1.23 percent in 2006, which failed to meet the annual target.

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为开展此次年度调查，美世公司评估了全球221个城市的生活品质，将这些城市与指数分值为100分的基准城市纽约进行比较。

For its annual survey, Mercer assessed the quality of living in 221 cities worldwide, measuring them against New York with an index score of 100 points as the base city.

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