A drought, combined with a lack of planning and maintenance, has caused a hydroelectricity shortage.  To deal with lack of power supply, in April 2016 the Maduro government announced rolling blackouts and reduced the government workweek to only Monday and Tuesday. A multi-university study found that, in 2016 alone, about 75% of Venezuelans lost weight due to hunger, with the average losing about 8.6 kg (19 lbs) due to the lack of food.