In this graph, The recycling rate of four difference materials is shown to be changeable over 18-year period from 1982 to 2010.
The two materials that show the highest recycling rate are Paper & cardboards and Glass containers, where there were different ups and downs in recycling rate of both of them., Paper & cardboards recycling rate rose 5% from 1982 to 1886 at but it follows a dramatic decline after 5 years and by 5% at the same time period Glass containers recycling rate shows a dramatic decline from 50% to 40%, both Materials rate started to increase again from 1990 to 1994, however Paper & cardboard shows significant fall from 1994 to 2010 in contrast with Glass containers that remain increasing at a high level.
The other two materials that their recycling rate started to be begin shortly after the first two material are Aluminum cans and plastic, Aluminum cans rate shows huge increase by 45% from 1986 to 2010, on the other hand Plastic recycling rate grew slowly by 10% over 10-year period from 1990 to 2010.
