Hi,see attachtment(Opleiding means Course) So shouldn't the sum of all unique visitors equal 8 instead of 7? My thanks in advanceMahad

I have situatie where I want to compare the number of unique visitors from one period against same period last year.When I look at the results i get, the sum total on the bottom does not equal the numbers in the different fields above. Sometimes the difference is significantIs this familiar? How can...