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The image displays a line graph with x-axis labeled from 1980 to 1996 and y-axis from 0 to 1400, depicting complaints. Data points: Road Works (1980: 200, 1982: 250, 1984: 300, 1986: 600, 1988: 800, 1990: 950, 1992: 1150, 1994: 1250, 1996: 1300), Factories (1980: 600, 1982: 620, 1984: 500, 1986: 400, 1988: 300, 1990: 280, 1992: 200, 1994: 160, 1996: 140), Traffic Noise (1980: 300, 1982: 400, 1984: 500, 1986: 550, 1988: 750, 1990: 800, 1992: 850, 1994: 900, 1996: 950), Domestic/household (1980: 740, 1982: 600, 1984: 460, 1986: 320, 1988: 280, 1990: 200, 1992: 150, 1994: 100, 1996: 50). Each category is represented by a distinct line type: Road Works (solid line with diamonds), Factories (solid line with squares), Traffic Noise (solid line with triangles), Domestic/household (solid line with crosses).
Given the complexity of the image, the above description may not be entirely accurate.
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The figure illustrates the number of noise reports to the local Environmental Health department, beginning in 1980 over a 16-year period, in the city of Newtown.
Generally, the number of complaints about domestic noise fell significantly while the figure increased for other categories.
In 1980, household noise was the leading cause of complaints, at about 650 reports. This number decreased consistently to less than 100 complaints in 1996, far below the amount of other types of complaints that year.
The number of complaints about factory noise start at around 400 in 1980, grew and reached its peak in 1990 at 750 incidents, then fell gradually afterwards. This data for traffic noise stayed constant for the first 4 years, went down a little in 1986, and started growing from 1988 onwards. The figures for road work complaints share a similar trend. However, after increasing rapidly from 1988 to 1990, road works became the primary source of complaints, at over 1000 incidents per year.
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