The line graph compares four different age groups in terms of the percentage of individuals in each group who visited gyms at least once a month from 1990 to 2010.
Overall, gym participation increased significantly across all age groups throughout the period. Furthermore, the 25-34 age group had the highest gym attendance from 1990 to 1998, before being overtaken by the youngest group, 18-24, from 1999 onwards.
In 1990, nearly 10% of individuals in the 25-34 age group exercised at gyms, the highest percentage among all the age groups. This was closely followed by the 18-24 age group, with approximately 8% attending gyms. Among the older age groups, 5% of individuals aged 35-44 visited gyms at least once a month, double the proportion of those aged 45 and over, at approximately 2.5%.
Thereafter, the 18-24 age group consistently saw an increase in gym attendance, overtaking the 25-34 age group in 1998 and reaching almost 60% by 2006. Over the next 2 years, this figure registered a drop of 10%, but later recovered to just under 60%, maintaining its position as the group with the highest gym attendance. Meanwhile, gym participation in the 25-34 and 35-44 age groups increased steadily, reaching 50% and 40% by 2010, respectively. Similar changes, but to a lesser extent, can be seen in the figure for those aged 45 and over, which experienced a modest growth to approximately 20% at the end of the period.