The word "uniformly" is key here, and why many generalizations fail, as well as being unfair and offensive.
I'd also doubt assumptions such as people are equally likely to report, it's equally easy to report, counting is done the same way, etc., so I don't think your response is sufficient to characterize the average.
#robocall complaints (Germany, 2018): 13375
https://www.ftc.gov/policy/reports/policy-reports/commission...
https://www.bundesnetzagentur.de/SharedDocs/Downloads/DE/All...