Words in brackets [ ] are generally recognized to denote editorial additions not in the original, which sources are carefully and very evidently provided, which is what your contention should be with as far as accuracy is concerned. But unless you are given to believing there are powerful conspiracies controlling everything, it is best to acknowledge the evidence and work from there.
No, sorry, that just won't work. Your source site is not objective, not at all. The bracketed text inserted by your source merely illustrates that fact. I went to the source home page as well. Whether or not the statistics are correct is not my focus, my focus is the objectiveness of the source providing the statistics.