 Researchers conducted a survey for the National Retail Federation in the United States and found that 53.3 percent of consumers planned to buy a costume for Halloween 2005, spending $38.11 on average (up $10 from the year before).They were also expected to spend $4.96 billion in 2006, up significantly from just $3.3 billion the previous year.The troubled economy has caused many Americans to cut back on Halloween spending.