This is total nonsense. E.g. in The Netherlands we have had tests every first Monday of the month, since I can't remember how long (I am 37 now), with the excep

This is total nonsense. E.g. in The Netherlands we have had tests every first Monday of the month, since I can't remember how long (I am 37 now), with the exception of 1997-2003 (when it was done once a year).