No way do I understand where the percent changes come from. A change from $80,192 million to $80,494 million is listed as a 1.6 percent decrease.

David Adams
Garnet Valley, Pa

The numbers are adjusted for inflation, which will erode buying power by the time fiscal year 2009 begins. At the time we wrote the story, the Office of Management and Budget was predicting a 2 percent inflation rate .— Science News staff