The 2005 Energy Statistics Yearbook is the forty-ninth in a series of annual compilations of international energy statistics and provides a global framework of comparable data on long-term trends in the supply of mainly commercial primary and secondary forms of energy. It presents data in original and common units (coal equivalent, oil equivalent, joules) for the years 2002-2005 on production, trade, stock changes, bunkers and consumption of energy. Data for each type of fuel and aggregate data for the total mix of commercial fuels are shown for individual countries and areas and are summarised into regional and world totals.