On a seasonally adjusted basis the April CPI-U for all items decreased 0.4 percent over the month. The index increased 1.1 percent from April 2012, not seasonally adjusted. The index for Gasoline fell by a substantial 8.1 percent in April, which contributed to an 8.3 percent over-the-year decline in Gasoline prices. Food prices were nearly flat over the month, increasing 0.2 percent. In the index for all items less food and energy, results for various categories were mostly changes of less than 0.5 percent up or down. The exception was in Used Cars and Trucks (+ 0.6 percent). There was an overall monthly gain of 0.1 percent and a 12-month gain of 1.7 percent.
The official BLS news release is available here: www.bls.gov/news.release/pdf/cpi.pdf