The prepared line graph outlines some information about the numbers of visitors who preferred doing some exercise in gyms once a month or more times from 1984 to 2003 in 4 different types of groups such as 18-25, 26_45, 46_65 and 65+ years old. Overall, by regarding to graph it is so clear the people who were 65 years and older had the lowest percent while, there was a significant increase in the percentage of people who aged 18 to 25 over 28 years moreover, in 2003 this figure reached to maximum point.
The former started at 10% and nearly 30% in 65+ and 46_65 respectively. The number of 46_65 went up marginally to 30% till 1989. Although, the procedure continued for 65+ group with the least number of customers until 1999, the percentage of 46_65 group experienced downward trend from its top point with 30% in 1989 dropped to the least of its point nearly 20% in 2003. Between 1989 and 1999 this figure kept on its decreasing pattern with almost 30% in 1994 and just over 20% in 1999. Also the percentage of 65+ group rose up to the highest number in 1994, about 20% and went down to almost 15% in 1999. This case recorded its pick percentage in 2003, with 20%.
By comparing the percentages of 18_25 and 26_45, we can understand the customers who aged 26_45 preferred going to the gym more than another one until a few years after 1994 after that it became inverse. The number of people who attended in clubs with 26_45 years old was 30% in 1984. This figure decreased 10% until 1989 so reached to 40%. Between 1989 and 1994 the percentage of them spilled marginally to a bit under 40%. After 1994 this case experienced upward process and its numbers were almost 45% and about 55% in 1999 and 2003 respectively. Furthermore, the percentage of people who aged 26_45 increased considerably over 19 years. It went up at a consistent rate with almost 15%, 25% and nearly 35% in 1984, 1994 and 1999 respectively. The number rose up sharply and altered to about 55% in 1999 subsequently, it recorded the maximum number of analyzed graph, nearly 65% in 2003.
