 As of 1 July 2016, the world had 444 operable grid-electric nuclear fission power reactors with 62 others under construction.Annual generation of nuclear power has been on a slight downward trend since 2007, decreasing 1.8% in 2009 to 2558 TWh, and another 1.6% in 2011 to 2518 TWh, despite increases in production from most countries worldwide, because those increases were more than offset by decreases in Germany and Japan.Nuclear power met 11.7% of the world's electricity demand in 2011.