First of all, we see that the average walking distance of people dropped from 255 miles in 1985 to 237 miles in 2000.

首先，我们看到，全年人均步行距离从1985年的255英里下降到2000年的237英里。

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Average walking distance on the six-minute test improved from 1, 508 feet to 1, 588 feet over the 30-day study period.

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