In the past, when food or raw materials were scarce, real value increased, because possession gave the owner an advantage for suivival.

在过去，当食物和原料都紧缺的时候，它们的真正价值就提升了，因为这些东西赋予了拥有者生存下去的有利条件。

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Between 2005 and 2007 the zloty's value increased in line with productivity (as a country becomes richer, its currency tends to rise in real terms).

在2005年至2007年期间，兹罗提的价值与生产力同步上升(一个国家越来越富裕，则该国的货币实际也会随着上升)。

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The average real value of the dollar increased by almost 42% from 1996 to 2001.

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