First of all , in the graph we can see that the number of participants in the Firm club section is higher than the others and, we can say it is in constant mode, because the number never becomes below 60. Secondly , there is a huge difference in Table tennis between 2000 and 2020 this is shown nowadays how people love playing it . Also, we can consider that Musical performances started their development in 2005 until 2020, and this is totally different from Amateur dramatical as we saw in the graph it becomes lower than the starting point. Back to Martial art, the graph shows the state is not constant 100% , but the starting and ending points are the same