Reese's named "highest-selling" Halloween candy

(CNN) -- When it comes to Halloween candy -- chocolate seems to be the preferred choice!

A survey conducted by the National Confectioners Association found that chocolate will account for 72% of all candy spending this Halloween.

According to market research firm Information Resources in the past 52 months ending September 8th, Americans spent $3.9 billion to buy 3.5 million chocolate bars, bags and boxes under 3.5 ounces.

Reese's and M&M's each accounted for more than $500 million in sales. Reese's is apparently the highest-selling candy -- with over $509 million in sales.