57 million is 50.3% of the population? The adult population, maybe? I don't think so.
Nationally, there were 217.8 million people age 18 and over; 35.9 million people age 65 and over
http://www.census.gov/Press-Release/www/releases/archives/population/001703.html
See the link?
And are you expecting minors to have investment accounts?
What are you channeling a Liberal?