largest annual decline since 1980 at the climax of the 1979 energy crisis. Possible causes Demand World crude oil demand grew an average of 1.76% per year from 1994 to 2006, with a high of 3.4% in 2003–2004. World demand for oil is projected to increase 37% over 2006 levels by 2030, according to the 2007 U.S. Energy Information Administration's (EIA) annual report. In 2007, the EIA expected demand to reach an ultimate high of , from 2006's , driven in large part by the transportation sector. A 2008 report from the International Energy Agency (IEA) predicted that although drops in petroleum demand due to high prices have been observed in developed countries and are expected to continue, a 3.7 percent rise in demand by 2013 is predicted in developing countries. This is projected to cause a net rise in global petroleum demand during that period. Transportation consumes the largest proportion of energy, and has seen the largest growth in demand in recent decades. This growth has largely come from new demand for cars and other personal-use vehicles powered by internal combustion engines. This sector also has the highest consumption rates, accounting for approximately 55% of oil use worldwide as documented in the Hirsch report and 68.9% of the oil used in the United States in 2006. Cars and trucks are predicted to cause almost 75% of the increase in oil consumption by India and China between 2001 and 2025. In 2008, auto sales in China were expected to grow by as much as 15–20 percent, resulting in part from economic growth rates of over 10 percent for five years in a row. Demand growth is highest in the developing world, but the United States is the world's largest consumer of petroleum. Between 1995 and 2005, US consumption grew from a day to a day, an increase of a day. China, by comparison, increased consumption from a day to a day, an increase of a day, in the same time frame. Per capita, annual consumption is by people in the US, in China, and in India. As countries develop, industry, rapid urbanization and higher living standards drive up energy use, most often of oil. Thriving economies such as China and India are quickly becoming large oil consumers. China has seen oil consumption grow by 8% yearly since 2002, doubling from 1996–2006. Although swift continued growth in China is often predicted,