America burns 6.63 billion kilowatt-hours to shine its end-of-year holiday lights. By comparison, annual kilowatt-hours in the developing world are paltry. In an entire year, El Salvador uses 5.35 billion kilowatt-hours. Ethiopia is at 5.30 billion, Tanzania at 4.8 billion, Nepal at 3.28 billion and Cambodia at 3.06 billion. (Those numbers come from the World Bank.) [link]
The chart is from CGDEV which also has additional commentary.