The 2009 World Almanac and Book of Facts reported that in 2007 there were 12,608,000 people age

Question:

The 2009 World Almanac and Book of Facts reported that in 2007 there were 12,608,000 people age 16 or older who had a "go outside the home" disability and that this was 5.5% of the U.S. population (of this age group). These are people who cannot go outside the home without help. How large was the total population (of this age group) in 2007?