The chart below displays the percentage of eligible voters who participated in federal elections in the United States from 2010 to 2020. The data shows a steady increase in voter turnout, particularly in the presidential election years. Based on the information presented in the chart, answer the following question:
What was the trend in voter turnout from 2010 to 2020, and how did presidential elections influence this trend?
Note: The provided solution includes an example of a perfect-score answer and explanation. Your response will not be scored.