Analysis of Voter Turnout Trends by Demographic Groups

The following graph depicts the changes in voter turnout percentages across various demographic groups in a federal election over the past two decades. Analyze the data presented and explain how demographic shifts, as indicated by the graph, have influenced the overall voter turnout in national elections. Additionally, discuss the implications these trends may have for political parties and strategies moving forward.

Utilize specific data points from the graph to support your analysis, and consider factors such as age, race, and educational attainment that may affect voting behavior.