File:Trends in population, vehicular fleet, energy consumption and ozone concentration in the Mexico City Metropolitan Area (1990-2006).gif
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Trends_in_population,_vehicular_fleet,_energy_consumption_and_ozone_concentration_in_the_Mexico_City_Metropolitan_Area_(1990-2006).gif (235 × 400 pixels, file size: 15 KB, MIME type: image/gif, 0.1 s)