大约平均每10年提高一个百分点。的翻译：1% improvement in average approximately every 10 years. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

The average, about every 10 years by one percentage point.

1% improvement in average approximately every 10 years.

Probably equally every ten years enhances a percentage point.

正在翻译，请等待...

1% improvement in average approximately every 10 years.