2021 US Population by Age (in Millions)
64.8
83.37
12.29
82.13
89.31
0-1920-39 40-59 60-79 80+
O A. Americans' attitudes toward aging
OB. Millions of Americans
C. Americans in different age groups
O D. Population changes over time
Text-based description
10. What category of things does the legend in the pie chart measure?