Who’s Counting?

Young voters are being courted nationwide Scripps Howard 7/20/04 (My italics)
“Both parties are trying to capture the nation’s largest voting bloc. Comprised of about 43 million people between the ages of 18 and 30…”
I hear the voting bloc between the ages of 18 and 31 is slightly larger. One of the smallest is the voting bloc between the ages of 45.5 and 46.