Social Security: By the Numbers Here are five facts about Social Security that might surprise you. Share | Related Content 18 Years Worth of Days The average retirement lasts for 18 years. Are you prepared to fill that many days? Catch-Up Contributions Workers 50+ may make contributions to their qualified retirement plans above the limits imposed on younger workers. An Inside Look at Retirement Living A number of questions and concerns need to be addressed to help you better prepare for retirement living.