The graph below gives information about the number of cases of diarrhea in Mashhad between 1983 and 1992. Summarise the information by selecting and reporting the main features and make comparisons where relevant
specific condition among Mashhad's dwellers
Given is the line graph describing the changes of diarrhea cases in Mashhad for nine years. Overall, for the beggining of periods, the number of diarrhea cases remained relatively static, however predominant cases was experienced throughout the last periods prior to no case was detected in the year of 1992.
In 1983, Mashhad's dwellers infected diarrhea stood at 100 cases, remaining stable for three years later. Following this, moderate growth was shown in 1986, reaching around 175 cases, then increased slightly to near 200 cases in 1987.
In the next period, some violent fluctuations of diarrhea cases was shown. This plunged to the similar number with initial period (around 90 cases). In 1988, surprisingly, an tremendous increase was noticed to around 400 cases, almost four time as high as previous period. However, it dropped noticeably to just over 350 cases in 1991. Interestingly, in 1992, no diarrhea case was recorded after an enormous fall was occured.