The SS statement booklet that you are talking about is mailed out sometime near your birthday as long as you are employed. Once you stop working, you know longer get the booklet.

"Each year, about three months before your birthday, you receive a Social Security Statement. It can be a valuable tool to help you plan a secure financial future. It provides you with a record of your earnings and gives estimates of what your Social Security benefits would be at different retirement ages. It also gives an estimate of the disability benefits you could receive if you become severely disabled before retirement, as well as estimates of the survivors benefits Social Security would *provide your spouse and eligible family members when you die."

http://www.ssa.gov/pubs/10035.html