The activity codes in the survey are * Public relation and communication activities (70.21.00) * Business and other management consultancy activities (70.22.00) From the reference year 2013, the method of the statistics is changed, thus the data are caculated based on a new data base for enterprises from the Business Register. Data is back calculated for 2012. Which means that the results before the year 2012 are not directly comparable to the results from 2012 onward