The evidence, specifically from CNBC (Source 10), provides data for the U.S. Dollar Index (.DXY). It lists a '52 Week High' of 110.18 on '01/13/25' and a 'Prev Close' of 96.873. Calculating the decline from the year's high (a proxy for the start-of-year value) to the current value shows a drop of approximately 12.1%. This figure is 'over 10%', supporting the statement. Other sources define the index but do not provide the necessary data to verify the specific percentage.