A long-term follow-up study of diabetes has been conducted among Pima Indian residents of the Gila River Indian Community of Arizona since 1965. Subjects of this study at least 5 years old and of at least half Pima ancestry were examined approximately every two years; examina- tions included measurements of height and weight and a number of other factors. Table E1.34 relates diabetes incidence rate (new cases/1000 person-years) to body mass index (a measure of obesity defined as weight/height2). Display these rates by means of a bar chart.