information about the number of cases of diarrhea

The line graph shows how many people suffered from diarrhea in Mashhad from 1983 to 1992. Overall, the amounts of people suffering from diarrhea dropped significantly throughout the survey. Besides, they were at their highest in 1989 while the weakest disease figure could be observed in 1992. At the beginning, the number of people who were infected by diarrhea stood at 100 cases and maintained the same level until 1985. The figure abruptly grew to 200 cases during the next two years, which was followed by a decline of about 50% in 88. However, the figure for suffered people from illness suddenly rose fourfold and had reached a peak of 400 cases by 1989. One year later, the level of sufferers declined by 50, following which it stayed steady for a year before diving dramatically and hitting a low of zero cases in 1992.