The line graph demonstrates the proportion of North American inhabitants who usually went to the gym between 1990 and 2010, divided into four age groups, namely 18-23, 24-33, 34-43 and 44-53.
Overall, all categories have fluctuating trends except for the increasing one of the 24-33 age group. Additionally, while 44-53-year-old individuals were the least likely to go to the gym in both the start and the end of the period, the percentage of the 24-33-year-old group remained the highest throughout the two decades.
Regarding the two highest statistics, the 24-33 age group started at approximately 17% in 1990, followed closely by 18-23 at 15%. Despite witnessing a considerable escalation to about 23% in 1994, the data of 24-33-year-old gymers plunged to 20% in 1998. After that, during the period from 1998 to 2010, it rose consistently from 20% to over 25%. Similarly, the 18-23 age group’s gymer proportion experienced fluctuation and stopped at 15% in 1998, at which it significantly rocketed to a peak of 25% in 2006. However, the data declined dramatically to 15% in 2010.
In terms of the lower sectors, both the 34-43 and 44-53 age groups began at approximately 5% in 1990, with the 34-43 one being a bit higher. After this point, they remained stable until 1994 and slightly increased to 8% and 6% for 34-44-year-old and 44-53-year-old gymers respectively. Additionally, both fluctuated until 2010 and stopped at 10% for the 34-44 sector and 6% for the 44-53 one.