The graph line illustrates, the reported figure of situations of influenza in people over 65 years old in a certain village in the UK between 1986 and 1995.
Overall, it can be notable that the peak of illness was in 1991 and amounted about 75 eldest people.
According the the graph, in the beginning, the number of influenza were 40 and the rose slowly over the next three years to reached 55 in 1987. In the following year, 1988, the figure decreased slightly and become approximately 45 individuals. On the other hand, the notified number of cases increased dramatically from 1989 to 1991. After peak of cases, in 1991, the trend started to decline significantly to reached of 60 people in 1993.
From 1993 to 1994 , the situations gently rose, and after turnning point in 1994 began to fall. At the end of the period, in 1995, the reported number of illness were 60 people.