U.S. workers' health costs double over decade: study

According to the Kaiser Family Foundation, the average premium for a company-provided family health insurance plan rose from $5,791 in 1999 to $13,375, a 131 percent jump.

Employees' portion of those costs have risen accordingly, from $1,543 on average a decade ago to $3,515 this year.

Employers, too, have see their costs shoot up from $4,247 in contributions in 1999 to $9,860 in 2009 on average.