Final energy consumption started to increase substantially after the first half of the last century, with the largest increases seen in gas oil, motor fuel and electricity (Fig. 23). In order to average the strong impact of meteorological conditions on heating demand, leading to rather large year-to-year variations in the final energy consumption (see also sections 2.5 and 3.2.3), mean values over several years are discussed in the following. Compared to the mean final energy consumption between 1910 and 1915, the mean final energy consumption was almost a factor of eight higher between 2010 and 2016. The highest final energy consumption over a period of five years occurred between 2006 and 2010, 7.5 per cent higher compared to 1990 to 1994. However, looking at the final energy consumption of the last about five years, it appears that final energy consumption started to decrease. Renewable energy sources (not including hydropower) still contributed a minor share of 2.8 per cent to the final energy consumption in 2016. Nevertheless, supported by the Swiss Energy programme (section 4.3.2), renewable energy sources gained importance during the last years. Between 1990 and 2016, the annual generation of solar electricity increased from 5 to 4800 TJ, while the annual generation of wind electricity increased from 0 to 391 TJ.