For the exchange rates between various currencies in previous years, you can log on to the web pages of major banks or the State Administration of Foreign Exchange and click on foreign exchange inquiry. ?

Exchange rate" is also called "foreign exchange market" or "exchange rate". It is the ratio of one currency to another currency. It is the price of another currency expressed in one currency. Since countries around the world Currencies (in various regions) have different names and currency values, so a currency must have an exchange rate for the currencies of other countries (or regions), that is, the exchange rate.