The given graph compares two different age groups in terms of marathon participation between 2008 and 2012.
Overall, it is apparent that the number of individuals aged 18-39 was the most dominant over the period. Also noteworthy is that people in the age group 18-39 and over 40 both exhibited an upward trend, causing the overall participant number to rise.
In 2008, the number of people from 18-39 years old was the most crowded in the marathon, with its figure being 1.200, which was 400 higher than that figure for individuals from age group over 40 who took part in this sport.
Thereafter, 18-to-39-year-old people experienced a moderate growth, to 1.750 marathon participants by 2012. Likewise, there was a gentle increase in the number of people participating in the marathon at over 40 years old, at 1.050 people. This made great contribution to a rise in the total participants at the end of the period, as its figure stood at 2.300 people.
