the graph shows the number of complaints made about noise to Environmental Health authorities in the city Newtown between 1980 and 1996

The line graph depicts complaints' figure that made about noise to Newtown city's Environmental Health authorities from 1980 to 1996.
Overall, the highest number of complaints made about Domestic/ household whereas lowest one was in Road works in the given period.
To start with, Road works people's complaints to authorities from it dropped moderately to 400 cases in 1984, and it declined around 130 complaints. Complaints about traffic noise made 500 between 1980 and 1984 which fell by about 300 in 1986 to 1988 and this number reached its highest level in 1996.
Moving to the factories, the shares of complaints people made from it rose to 700 in 1986, then it remained unchanged by the end of 1996. The authorities received just over 600 complaints about Domestic noise, which decreased in 1986 by 200. Then, there was dramatically increase from 400 to just over 1200 in 1996.