This reduction can
be explained by an increase of plastic and paper concentrations.
In the previous decade (1985–1995) papers accounted
for no more than 20% and plastics for less than
10%. In contrast, recent studies (1995-current) suggest
that papers now comprise 25% and plastics percentage
doubled reaching 20%. This represents an increase of
25% for paper and 100% for plastics, or 60% in total.
In the most recent studies (Salonica 1998, Pylaia 1998
and Cretan Region 2003–2004), there is also an increase
in packaging materials. This change is not only a result
of the prevailing consumption patterns, but also an outcome
of modern practices for marketing of products and
goods.