The given table gives information on how many marathon participants in two distinct age groups, namely 18-39 and over 40 years old between 2008 and 2012.
Overall, it is apparent that the number of individuals participating in the marathon from age group 18-39 became the largest group throughout the period. Also noteworthy is that people in the age group 18-39 and over 40 exhibited an upward trend, causing the overall total participants to rise.
In 2008, there were 1,200 marathon participants from 18-39 years old, which was 400 higher than the figure for those in the age of over 40.
Thereafter, the number of 18-to-39-year-old people taking part in this sport witnessed a moderate growth, with its figure being 1,750, which also consistently outnumbered the figure for the group of over 40-year-old people. Notably, the number of participants at over 40 years old rose gradually over the period, but it was still two-fifths lower than that of the dominant age group 18-39. All in all, this made a significant contribution to the total participants at the end of the period, as its figure stood at 2,800.
