 Biodiesel increased by 85% to , making it the fastest growing renewable energy source in 2005.Over 50% is produced in Germany.Energy consumption is loosely correlated with gross national product and climate, but there is a large difference even between the most highly developed countries, such as Japan and Germany with an energy consumption rate of 6 kW per person and the United States with an energy consumption rate of 11.4 kW per person.