The provided table illustrates the quantity of two different groups of age partaking in the marathon between 2008 and 2012.
Overall, both of two age groups saw a considerable change in the number of participants throughout the period. While two gorups represented a significant growth over the span, the age group from 18 to 39 years old obtained a larger surge in the number of attendees compared with over 40 age group during the phase.
In terms of 18-39 age group, the figure began with 1,200 participants in 2008, followed by a moderate increase to 1,350 partakers in 2009. Apparently, the quantity of people joining the marathon continued to rise, reaching 1,500 in 2010 and 1,600 in 2011. In the last year, the number of marathon members was recorded at 1,750 participants in 2012, becoming the largest figure of the phase.
Concerning age group 40 and over, the figures was remarakably lower than the younger age group. The number of competitors was 800 in 2008, before slightly going up to 850 in 2009 and 900 in 2010. Despite gradually increasing to 950 people in 2011 and 1,050 in 2012, the number of partakers still owned a small quantity in comparison to the former age group. Regarding the sum of participants, the numbers were 2,000 , 2,200 and 2,400 in the first three years, respectively. In 2011, it was recorded at 2,550 participants before climbing to 2,800 people in 2012.