In SmarterStats, this is the total for the column shown (e.g. bytes in,
bytes out, or time taken) divided by the total for that column for all items
multiplied by 10000. It is used to show what pages need the most optimization.
Ex. (itemBytesIn/totalBytesin)*10000. When referring to the results listed by
the competitor suggestion tool, score refers to the sum of competitor's
position rankings across all selected search engines. The actual formula used
is Number of Search Engines * (Max Results - Ranking) = Score.