The table is sorted by the position index. Change refers to the appreciation of the USD against the listed foreign currencies. A positive number refers to appreciation, a negative number refers to depreciation. Change Index is the value of the USD relative to its value one year ago set to 100 at that time. The table is sorted by the index of 1-year appreciation.
Volatility refers to measures of the standard deviation of the daily percentage change.
An index lower than 100 indicates volatility decrease, and an index higher than 100 indicates an increase in volatility. The table is sorted by the volatility index. Comovements determine the need for currency diversification.