[Retric]

But your example doesn’t fit the pattern of days divisible by 5 so it’s irrelevant.

The 5th of January is equally likely to be on any day of the week including weekends. Simply delaying + office days etc don’t get you that pattern it only shows up if people are filling in arbitrary dates.

Further if people are filling in arbitrarily dates +/- N years or even months that’s going to dramatically increase the number of officially extremely old deaths. Aka far more people die at 100 than 107. So randomly add or subtract a few years and on official paperwork you might lose one person who actually died at 107, but then add 2 people who actually died at 100 but officially died at 107.