Relative to larger nations, in SIDS national energy generation and use are therefore relatively small, but domestic demand is increasing over time as populations develop and new industry is created. Trinidad and Tobago has the highest rate of energy use per capita, at over 15 tonnes of oil equivalent per year. In global terms, the energy use and CO, emissions of SIDS are low, with CO emissions averaging 4.7 megatonnes per year, however, there is an extreme difference between the highest and lowest emitters. Higher-income countries are the highest emitters, they include Trinidad and Tobago (the highest emitter, with 50 megatonnes per year), Dominica and Jamaica.