The bar charts below show the prevalence of obesity among boys and girls aged 12 to 19 years by ethnicity, in the United States for the years 2004 and 2014.
The bar chart below shows the results of a survey conducted by a personnel department at a major company. The survey was carried out on two groups of workers: those aged from 18-30 and those aged 45-60, and shows factors affecting their work performance.