The first chart is a good example of why a pie chart is usually not the correct choice for data visualization. Pie charts are usually quite hard to read, but this one is particularly bad as it has an animation looping through different years' data; it's impossible to discern the actual trends at a glance.
Much better would be a simple line graph with the trends for each series. More fancy, and perhaps a slightly better way to emphasize the narrative of the article, would be plotting the relative change from the first year (2007) for each series.
Much better would be a simple line graph with the trends for each series. More fancy, and perhaps a slightly better way to emphasize the narrative of the article, would be plotting the relative change from the first year (2007) for each series.