The procedure for calculating the quality parameters Quality parameters – Q3 2016 Quality parameters – Q2 2016 Quality parameters – Q1 2016 Quality parameters – Q4 2015 Quality parameters – Q3 2015 Quality parameters – Q2 2015 Quality parameters – Q1 2015 Quality parameters – Q4 2014 Quality parameters – Q3 2014 Quality parameters – Q2 2014 Quality parameters – Q1 2014 Quality parameters – Q4 2013 Quality parameters – Q3 2013