Before the CPI data release, the U.S. Producer Price Index (PPI) for March, announced on Tuesday, could provide an early indication of inflation trends. Also set to be released on Wednesday alongside the U.S. CPI data is the so-called "scary data" of April's retail sales figures, which will offer clues as to whether the U.S. economy's strength remains robust. Additionally, the weekly initial jobless claims will be announced on Thursday.