This graph shows the percentage share of each form of energy used yearly since 1970. In addition, 
the graph shows the usage as a percentage of GDP for the World, China, United States and India.
Error using .*
Matrix dimensions must agree.

Error in plotSpotlight (line 30)
    output = repmat(a,[1 1 3]).*single(im)/255;

Error in plot_individual_user_maps (line 49)
        [heat] = plotSpotlight(im,heatmap,3);