How many Christians have actually read the whole Bible? I have many times heard the claim that only very few people who identify themselves as Christians have actually read all or most of the Bible.


Have there been any studies to approximate the percentage of Christians who have read the Bible? I have found several numbers, but none of them cite any reliable sources.
Are there any significant differences between denominations?
Catholics who attend daily Mass for 3 years will have read through the entire Bible, or at least enough to disqualify themselves for St. Jerome to count them among the ignorant of Christ.


  Ignorance of scripture is ignorance of Christ


St. Jerome (famous bible translator)

I won't attempt to extrapolate numbers that don't exist, but you might as well assume the number is non-negligible, but probably no more than 3% in North (of Mexico) America and Europe. 



Personally, I don't go to Mass every day any more because of work, commute and family, but I did read the whole Bible when I was a telerelay operator and had the time.