The provided table illustrates the two age groups that participated in the marathon between 2008 and 2012.
Overall, the quantity of the age group had been increasing during a period. Consequently, the numbers had reached its highest in 2012. The highest figure was recorded at 1750 by the age section of 18-39 years old. Conversely, the lowest numbers were standing at 800 by the age group of 40 and elder.
Regarding the age group of 18-39 years old, the numbers had undergone a slight shift through the time. In 2008, 1200 people had been participated in the marathon; subsequently, 1350 and 1500 participants were recorded in the next two years. In 2011, the figures for people participating in the marathon reached 1600. As one year passed, the highest number stood at 1750, showing the increasing interest in taking part in the marathon by particular age class.
Similarly, the age area of 40+ years old underwent a rising change in quantity of participants. In 2008, the lowest figure eas recorded, standing at 800. Regarding 2009, the number had increased by 50, and one year later, the figure was standing at 900. In 2011, 950 people took part in the competition. In 2012, 100 participants more participated in the marathon.
Total participants’ quantity underwent a gradual shift between four years. At the beginning, the number was 2000. Each year after, the figures rose by about 150 or 200. In 2012, the number accounted for 2800 participants.