The graph describes the biggest livestock populations in different countries for 2009. There 
are 4 major livestock animals listed: Chickens, cattle, pigs and sheep. China has the most 
livestock out of the countries listed for each category except cattle, where Brazil has the 
most.
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);