Acronym Soup: CE ?

Questions

It is estimated that the average person living in North America opens the fridge ----- times daily.?

The average American's diet today consists of 55 percent -----------?

The average bra size sold at Frederick's of Hollywood in 1966 was a 34B. Today, it's a ----?

It's been estimated that an opera singer burns an average of more than ---- calories per minute during a performance.?

Left-handed people are ----- percent more likely to sample a forkful of food from the plates of fellow diners than are right-handed people.?