BANGUI (Reuters) - Central African Republic's economy is expected to grow by 5 percent in 2016 and increast to 5.7 percent by 2021 as it seeks to rebuild following years of crippling inter-religious conflict, the International Monetary Fund (IMF) said on Friday. The IMF did not provide a growth figure for last year, but the Central Bank of Central African States said in March the landlocked country's GDP had expanded by 4.9 percent in 2015. (Reporting by Crispin Dembassa-Kette; Writing by Makini Brice; Editing by Joe Bavier)