This article presents survey results and trends on employer-sponsored health insurance in 2006.  The article highlights rising premiums specifically noting increases of nearly 8 percent from 2005 to 2006 and 68 percent from 2001 to 2006. 

Claxton, G., Gabel, J., Gil, I., Pickreign, J., Whitmore, H., Finder, B., et al. (2006). Health benefits in 2006: Premium increases moderate, enrollment in consumer-directed health plans remains modest. Health Affairs, 25(6), w476-w85.  26 Sept. 2006. DOI: 10.1377/hlthaff.25.w476.  http://content.healthaffairs.org/cgi/content/abstract/hlthaff.25.w476v1

Authors: Gary Claxton, Jon R. Gabel, Isadora Gil, Jeremy D. Pickreign, Heidi H. Whitmore, Benjamin Finder, Samantha Hawkins