The table illustrates the number of people who joined in a wildlife survey in Britain between 2001 and 2009.
Overview, there were a significant increase of people taking part in a wildlife survey in total. The number of aldult participated in a survey were rose while that of children were fluctuated.
In 2001, the population of aldult joining in survey were 36,000 as much as 3 times that of children. Over the next 2 years, the number of aldult grew significantly to 212,000 while that of children were increased 3 times than 2001. In 2005, there were witnessed a considerablely growth to 332,000, hit the highest position of aldult over the period while children saw a slight fall to 32,000. In total saw a increase from 48,000 to 364,000.
In 2007, the number of aldult joining in a wildlife survey were 331,000, which more than 10 times that of children. Over the next 2 years, there were a slight decrease of aldult to 270,000 equal with that of children. In total were hit a highest point at 540,000.