Not quite. The value of the currency has declined by 33% since 1999.
Prices are subject to the combination of the value of the currency and the value of the good. Food may be worth more than in the past, for example, so you cannot look at the value of the currency alone.
Food is one of the things that's going to have the least change in value.
The value of the currency relative to an evolving bag of reference goods.