The price of polystyrene decreased by 2.2% in February 2015, and by April it had fallen by 31.5% to
32.3%; thereafter, it decreased by 20.1 and 20.4% until October and
by the end of the year, it had only changed by a few EUR/tonne, with an expected 3% in January 2016,
and 3.2% respectively.
