The data obtained in the characterization process were registered
in a database, separating them depending on the period
and the type of stream. The percentage in weight of each wet fraction
related to the total weight was calculated. From these data,
once again, the central tendency and the variability of each waste
fraction and stream were calculated. In order to detect whether
there is any difference in the composition between the two periods,
the Wilcoxon Rank-Sum test was performed for each component
and stream. All the statistical analyses were calculated using
the free open-source R software package.