he bar chart illustrates data on the percentage of people participated in the gym during two decades by categorizing into five age groups:18-25, 25-34, 35-55, 45 and over.
From an overall perspective, there is a constant upward trend among all people regardless of their ages. However, the proportion of the youngest group increased significantly and reached to the highest quantity of using gym facilities, oldest youngest group were less likely to take advantages of the gym and maintain a steady soar.
In details, the proportion of individuals who categorized to 18-24 age noticeably rose from almost 10% in 1990 to 30% in 1998. However, the sharpest increase was absorbed between 1998 t0 2006, when the percentage of individuals surged from 30% to 60% among of them. as well as percentage of people aged 25 to 34 experienced a remarkable increase over the decades by growing 40%. Although the number of them were more than other ages , they stood the second of chart by end of the 2010.
However, the third group aged 35 to 44 experienced most fluctuation between other groups. initially, they fluctuate between almost 10% and 20% between 1990 and 2002 which is followed no change. Nest, the proportion of them was doubled between 2005 and 2010.
In conclude, elderly from 45 and over stood last of the chart, while they became more interested to going the gym in 2006 with 20%, before that they remined stable with 10% percentages.