When considering the structure of gross domestic consumption in the reference year (1990) and in 2016, one can note a clear decreasing trend regarding the share of solid fuels (from 23.8 per cent of the total in 1990 to 2.7 per cent of the total in 2016) and liquid fuels (from 41.5 per cent of the total in 1990 to 32.0 per cent of the total in 2016), respectively an increasing trend regarding the share of electricity (from 8.5 per cent of the total in 1990 to 10.4 per cent of the total in 2016), gaseous fuels (from 25.9 per cent of the total in 1990 to 30.0 per cent of the total in 2016) and biofuels (from 0.4 per cent of the total in 1990 to 25.0 per cent of the total in 2016) (Table 1-34, Figures 1-10 and 1-11).