The graphics below aim to illustrate the change in voter turnout in EP elections relative to the increase in population as
the number of Member States has increased. They show, for 1979 and for 2009, the number of people that voted (green)
in the EP elections relative to the number of registered voters (red) and the total population (grey). The last of these includes
those too young to vote, non-citizens and those otherwise ineligible to vote. Each symbol of a person represents
10 million people.