What do the audience sizes in the Audience Map cells indicate?

The size of the population represented by each cell is displayed within the cell.  This number is rounded to the nearest 0.1k, 1k, 10k, or 100k, depending on the population size of the cell.  For example, 4.7k has been rounded to the nearest 0.1k and 5100k has been rounded to the nearest 100k.

Within a single dimension (row), the population size of all the age groupings within each gender should add up to the population size in that gender’s All column.  Additionally, the Men’s All and the Women’s All should add up to the U.S. All column.  However, this is not always apparent due to the rounding scheme mentioned above.