New data by Towers Perrin suggests that employers will pay, on average, $9,552 per employee for health benefits in 2009, a jump of 6% from 2008. Yet some employers will buck the trend because they proactively manage their benefit programs.

In its 2009 Health Care Cost Survey, the HR consulting firm reveals that high-performing companies (those that rigorously track their health benefit objectives) will spend, on average, 12% less in annual health care premiums in 2009, compared to low-performing companies.

For example, high-performing firms report health benefits costs $8,904 per employee, compared to $10,104 for low-performing companies. The cost fell even lower (to $7,032) at high-performing companies utilizing consumer-driven health plans with health savings accounts.

The survey defined high performers as companies that not only had a strong commitment to improving employee health and engagement, but also aggressively managed their health plans and the delivery process.

Other key findings in the survey included:

• Large employers are experiencing health care cost increases of 6% on average, or $532 per employee per year. Although this year's average percentage increase is similar to last year's, employers are paying 29% more today than they spent five years ago for health care.

• In flat dollar terms, the employee share in 2009 will average $80 per month ($960 annually) for employee-only coverage and $273 per month ($3,276 annually) for family coverage - a significant cost for many employees.

• Pre-65 retirees will contribute approximately 51% of the premium for retiree-only coverage, and 54% for family coverage.

• Retirees age 65 and older will pay an average of $148 per month (or $1,776 annually) for retiree-only coverage and $309 per month (or $3,708 annually) to add coverage for one dependent.