The U.S. Census Bureau reported last week that the number of uninsured rose from 45.7 million in 2007 to 46.3 million in 2008. The majority of those uninsured, though, are baby boomers. More than 11 million boomers, or 14.5 percent of the 78 million counted by the Census Bureau, were without insurance in 2008, up 5 percent from the year before.

Maybe it’s only natural that the largest demographic should also be the largest group of uninsured. By comparison, less than 10 percent of the second largest group, children under 18, was uninsured in 2008. And, while there are fewer millennials, they had the highest percentage of uninsured, at 28.6 percent.