In my spare time I looked up your information source...a book by E.R.Chamberlin with a 3.7 rating and available many places on the internet for $1.00 (Kindle version for $.99)
I could locate no information at all on the author to see what his qualifications were. The Popes described were in officw for a total of 71 years and 134 days. The office of the Pope has existed for 2,015 years and 30 days so their average isn't that bad.....71/2015 isn't a real large fraction.
The main problem with the ones who caused the most concern was that they were hand in hand with crooked political figures of their time....their moral failures were just that...men being evil men.
It is aan interesting insight however and I'll read a little more about them
Another fraction of interest is 8/266....that's bad Popes over all Popes, another miniscule fraction....not good of course, but I'd bet that the fraction of bad presidents/all presidents would be worse and this country is only a little over 200 years old.
E.R.Chamberlin also wrote Antichrist and the Millennium....that also sounds like a real winner.
LOLOLOL!!! How funny...you're getting down to the exact number of days this nonexistent early Papacy has been around? You know your calculation is off by at least several centuries, right??? Even IF Peter started the line of Popes of Rome (and he didn't), you're off by nearly five decades. At least admit that, won't you?