The Astana Times provides news and information from Kazakhstan and around the world. ASTANA — The National Bank of Kazakhstan kept its base rate at 18.0% per annum, with a corridor of plus or minus 1 percentage point, according to the bank’s statement released on April 24. Photo credit: The National Bank Annual inflation slowed to 11.0% in March from 11.7% in February. Food inflation eased to 11.7% from 12.7%, non-food inflation to 11.3% from 11…