Request: Christian demographic statistics at the time of the reformation I suspect I won't be able to get any good answers but I think it's worth asking anyway.

I'm curious about what Christian demographics looked like at different points in history. For example what percentage of the Christian world was Roman Catholic and what percentage were Eastern Orthodox at the time of the great schism? I'm also interested in the fine-details, for example what percentage of Christians were Greek Orthodox, what percentage were Russian Orthodox, what percentage were Ukrainian Orthodox? etc.

To narrow down the period a bit, I'm curious about demographics at the time of the reformation and to be really specific, I'll make it the date that Luther nailed his 95 theses to the door in Wittenburg.

To reiterate: I'm looking for an exhaustive coverage of the entire Christian world at the time, including the Oriental Orthodox churches, the Church of the East, any minor heretical sects of the day. What was the population percentage of each respective group?

For an example of what I'm looking for, this page on wikipedia does an outstanding job of breaking down the demographic statistics for today. I'm wondering if there is anything similar for the time of the reformation?

Note: the reason I'm asking is because I was perusing the statistics for today, and I was completely blown away by the dominance of Latin-Rite Catholicism. Roman Rite Catholicism is in the majority by far, completely dwarfing the other communions and churches, and I was wondering if it has always been this way.
This is not exactly what you are looking for, but this Wikipedia page estimates population by country in the year 1000 AD.

Since the Byzantine Empire, Kievan Rus and Volga Bulgaria would have been countries under one of the four eastern Sees, we could estimate the total number of Christians following the eastern Rite to be around 20 million.

Those countries under the See of Rome would have included the Holy Roman Empire, the Kingdom of France, the Kingdom of Arles, the Principality of Hungary, Poland, the Kingdom of England, the Duchy of Brittany, the Kingdoms of Denmark, Sweden, and Scotland, and, finally, Norway and Iceland, which amounts to around 23 million.  

This is very rough, since there were some who practiced the eastern rite within the west, and some who practiced the western rite within the east, and we are not counting Christians who lived within the Moslem countries, but a rough estimate seems to suggest that the breakdown was roughly 50-50 at the time of the Great Schism (1054).

Wikipedia provides population estimates by country for 1500 and 1600 as well, so one could extend this exercise for those periods as well.