Tanzania’s headline inflation is expected to continue its downward trend, reaching 10 percent by year-end and falling into single digits by the end of the financial year in mid-2013, central bank governor Benno Ndulu said on Friday.Core inflation, which excludes food and oil prices and is currently around 9 percent, should ease to a 5 to 7 percent range by December, and stay around 5 percent till next June, Ndulu told Reuters on the sidelines of a central bankers’ conference in Cape Town.Slowing food prices pushed the year-on-year inflation rate to 14.9 percent in August from 15.7 percent a month earlier, the National Bureau of Statistics said earlier this month.