> But the data isn't so clear. While I am not going to answer your questions, I am very careful when it comes to comparing data across countries. There are en

> But the data isn't so clear. While I am not going to answer your questions, I am very careful when it comes to comparing data across countries. There are enough open questions when it comes to interpreting the data from a single country (a very common being selection bias, as it is unclear what the preconditions are for conducting a test and I am still missing the numbers of how many tests have been conducted). However, when I look across countries, there are some very odd curves, which I have a hard time to explain. I find it much more likely that in some countries someone manipulated the data (by whatever means). I still think the data is valuable, but when interpreting it, it should be considered, that not all data is 100% valid.