Voters between 45 and 65 year old and voters over 65 years old have the highest rate of voter turnout. In the time span from 1964 to 2004, 18-24 year olds usually had a voter turnout of 41.8%, compared to 25-44 year olds who had a turnout of 57.9%. Voters between 45 and 65 year old and voters over 65 years old have turnout rates of 69.3% and 66.6% respectively. Younger age groups are typically underrepresented in proportion; the greatest percentage of unregistered voters is in the 18-30 year old age group. People in younger age demographics are speculated to be more focused on other aspects in their life, such as college, marriage, and careers. In turn, younger demographics are less likely to learn about politics or understand the implications behind voting. Voters tend to be older, wealthier, and more educated than non-voters.