Emissions from motorbikes and mopeds increased by 117 percent in the same period, although they still only emitted 130,000 tonnes of CO2 in 2006, compared to 12.3 million tonnes emitted by cars.
Car emissions fell by one percent since 1990, with bus emissions falling by 8 percent to 560,000 tonnes in 2006.
Heavy trucks emitted 4 million tonnes of CO2, while light trucks emitted 1.67 million tonnes, rises of 35 percent and 27 percent respectively.
The fall in car emissions us due to improved fuel economy and increased use of biofuels in cars, particularly the addition of small amounts of ethanol to ordinary petrol, the administration’s Håkan Johansson told Dagens Nyheter.
The rise in truck emissions was mainly a reflection of economic growth, he said.