Last week I asked why a 'stacked' bar chart was chosen to illustrate the information in the figure below. The answer is that each stacked bar shows us 4 pieces of information (number of gold, silver and bronze medals, and the total number). This is surely the clearest way to show so much information on one chart.
The chart below shows the total number of Olympic medals won by twelve different countries.
Here are my first 2 paragraphs (introduction and overview):
The bar chart compares twelve countries in terms of the overall number of medals that they have won at the Olympic Games.
It is clear that the USA is by far the most successful Olympic medal winning nation. It is also noticeable that the figures for gold, silver and bronze medals won by any particular country tend to be fairly similar.
Notice that I don't mention any numbers in my overview paragraph. I just make two general observations: one about the highest total, and one about relative numbers of each medal colour.