My daughter has a number of $100 denomination EE bonds from her grandparents. She is in her second year of college and wants to start cashing them in. To help her decide which ones to cash first, I first have a question. Using the Savings Bond Wizard, most of the $100 denomination bonds from 10/1998 to 01/2007 have a current value between $65-$76 and a yield of around 2.4%. However, there is a group of 10 EE Bonds from 02/1999 to 09/2000 that have a current value between $100-$102 with a yield of around 4%. Why would they be so different? Does that impact which ones she should cash first? Any advice is appreciated.