The graph reflects a the amount of people taking part in a wildlife survey from 2001 to 2009, seperating people as adults and children in the study. The table uses two-year interval datas, indicating both adult and children numbers grew over time.
The graph starts from 2001 values, in which the amount of people took part in the survey was 36000 for adult and 12000 for children. Two years after, the number for adults increased rapidly to 212000, and the number for children tripled, making the gap between adult and children survey takers larger. After two years more, in 2005, the amount for adult survey takers peaked, while the number of children survey takers dropped, as 4000 less children took survey.
6 years after the first survey, in 2007, both adult and children were less involved in survey taking as the numbers for both plummeted by a thousand, making the total number of survey takers drop marginally for the first and only time. Although the number of adult survey takers were ten times larger the number of children who took the survey, couple of years after, in 2009, both values were equalised at 270000, making the total number of surveyers 540000.