When I export the survey in CSV with no filters set and all missing values set to -99, I get a lot of 0 values for some variables.
The online statistics tool does not show any 0 values. What transformation in the export could cause this behaviour? Also the total participant values do not match for the online statistics and the export.
Did you get a solution to the problem? I am facing the same problem at the moment. When exporting the dataset I get a lot of missing values but in online statistics, there are no missing values at all.