(Reuters) – Consumer inflation in Russia in 2022 is expected to accelerate to its highest since 1999, while the economy will stage its deepest contraction since 2009 as a result of sweeping Western sanctions, a Reuters poll showed on Thursday. Economic expectations have deteriorated drastically in the past few weeks as Russia took a hit from unprecedented Western sanctions designed to punish Moscow for what it calls “a special military operation” in Ukraine, which started on Feb. 24. The average of 15 analysts polled in late March suggested the Bank of Russia will keep its key interest rate un…