IMF forecasts 3.7% global-GDP growth in 2018, up from (estimated) 3.6% in 2017 and (actual) 3.2% in 2016: https://www.wsj.com/articles/imf-raises-global-economic-outlook-for-this-year-and-2018-1507640400 In Apr 2017, the IMF's 2017 forecast was 3.5%.