The downward trend of bookstore sales continued in May, with sales in the month off 7.5% compared to May 2013.

According to data released Tuesday morning by the U.S. Census Bureau, bookstore sales fell to $794 million in May 2014 from $859 million in the previous year. Bookstore sales have fallen every month so far in 2014 and for the first five months of the year were down 8.0%, declining to $4.39 billion.

For the entire retail segment, May sales rose 4.7% and were up 3.4% for the first five months of 2014.