How Much Has A Typical Family Saved Up For Retirement?

We spotted this stat today:

"On average, a typical working family in the anteroom of retirement — headed by somebody 55 to 64 years old — has only about $104,000 in retirement savings, according to the Federal Reserve’s Survey of Consumer Finances." Source

Clearly, that's not enough. Investment advice has got a lot to do with that number, of course.