The line graph shows variations in the rates of obesity among four different ages between 1971 and 2005. The units are measured in percentage.
In terms of overall obesity rates, all four age groups followed the same patterns of increase. Of particular note is those aged 45-64 being the most obese group throughout this timeframe.
In early 1971, the proportion of obese across all age brackets stayed relatively unchanged at well under 20%. However, the years from 1976 to 1999 saw a rising trend in the entire frame as the rate of obesity experienced significant growth among people of all ages. By 1999, over 35% of people aged 45-74 were considered obese in this country, whereas the proportions for groups 18-29 and 30-44 stood at approximately 23% and 30%.
During the early 2000s did not witnessed any major changes in the obesity rates with the exception of a noticeable increase in the 30-44 age group levels that reached 34% in 2003. Meanwhile, the rates of the group aged 45-64 climbed, reaching its highest levels at above 40%, ending the period as by far the most popular obese group by the end of the period.