Heat energy consumption by industry sector has been fluctuating in the period 2010-2014, w'hile household heat consumption increased almost tenfold in 2014 over the previous year (table 11.7). The biggest gain in energy consumption was seen in the transport sector, where energy consumption increased almost threefold since 2005 and equated to 118 ktoe in 2013 (table 11.8). The increased number of old, inefficient vehicles in Tajikistan accounts for the increase in total final energy consumption levels by the transport sector from 2005 onwards.