The bar chart demonstrates the percentage of overweight or obese adults between 1965 and 2015, while the pie chart illustrates the distribution of four weight levels among the adult population in 2015.
Overall, the prevalence of overweight and obesity among adults increased steadily over the period. Furthermore, the distribution was dominated by overweight and obese groups, only a minority was severely obese in 2015.
In 1965, roughly 45% of the adult population were classified as obese or overweight. This figure remained relatively stable for the following two decades. After that, there was a significant growth in 1995, when nearly 60% was found to be obese or overweight. It then rose gradually until the end of the observed time, reaching a peak of approximately 75% in 2015.
Turning the pie chart, obese individuals accounted for 34% of the adult population, representing the largest proportion among all weight categories. It was followed by overweight group, making up over one-third of the distribution. Besides, 29% of the adult population was categorized as healthy or underweight, which was only 2% lower than that for the overweight group. Notably, only 6% were identified as severely obese in 2015.
