The chart below shows waste collection by a recycling centre from 2011 to 2015
The bar chart compares the variation in levels in different years in terms of promotion of the quantity of tons of waste collected by a recycling company between 2011 and 2015.
In general, four types of waste were promoted over the year. Specifically, each percentage of waste did not show a significant difference at the beginning and the end.
Initially, paper and glass variations were around 57% and 48% respectively, which is markedly higher than tins and garden in 2011. Moreover, in the following year, all types of tons of waste had a tendency to rapidly decreased and got the lowest point of each type over the period.
Continuing for the rest of the period, the percentage of paper continued to rise to the end and reached a peak of 70%. For a while, the remaining three components witnessed fluctuation. Particularly in 2013, all of them steadily decreased until 2015 and grew to 52%, 39% and 35% in 2015, respectively.
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