Page "Tables of historical exchange rates to the United States dollar" Paragraph 0

Listed below is a table of historical exchange rates relative to the U. S. dollar, at present the most widely traded currency in the world.

An exchange rate represents the value of one currency in another.

An exchange rate between two currencies fluctuates over time.

The value of a currency relative to a third currency may be obtained by dividing one U. S. dollar rate by another.

For example if there are ¥ 120 to the dollar and € 1. 2 to the dollar then the number of yen per euro is 120 / 1. 2 = 100.