Monthly statistics including data for August 2016 have been published.
The weight of transported cargo increased in August 2016 in comparison to August 2015 by almost 2%, which was only the second monthly growth this year. Transport performance increased by 3%, while operating performance fell by 1,5%.
Taking the first eight months of 2016 into consideration, the weight of transported cargo fell by 1,8%, while transport and operating performance decreased by 0,1% and 0,9%.
You will find data on freight transport here http://www.utk.gov.pl/en/markettatistics-and-ann/monthly-statistics/monthly-statistics-201/7097,Freight-transport-results-in-2016.html