Fig. 11
From: World trend in energy: an extension to DEA applied to energy and environment
Source: Global Wind Energy Council (http://www.gwec.net/global-figures/graphs/)
Global Cumulative Installed Wind Power Generation Capacity from 1997 to 2014. We prepare the figure based upon the numbers listed in the data source. See Sueyoshi and Goto (2017). MW Megawatt.