Question

how to describe this line graph ​

Answer 1

this is an account of no of accidents in respective years of occurrence.

1n year 1987, less than 2000 cases then it rose above 3000 in year 1988. in year 1989 it showed a sudden drop till year 1990 where it touched about 2000..

like this you have to explain for every year. you can use words like sudden fall, steep growth for good impressions