For long OTB games, what is the percentage of players who have a rating which is below X FIDE Elo? I am looking for statistics on the FIDE Elo of chess players.

I would like to know what is the percentage of players who have a rating which is:


Below 1000 Elo
Below 800 Elo
Below 600 Elo
Below 400 Elo
Below 200 Elo
Higher than 2000 Elo
Higher than 2200 Elo
Higher than 2500 Elo


I'm making it clear that I am only interested in statistics for the FIDE Elo, not the USCF Elo. And I am only looking for statistics for OTB games (not correspondence) of long time control (not rapid, nor blitz).
You can get the FIDE rating list here. I used R statistical software to analyse the data for the latest OTB rating list (of 15th Sep. 2014). At the moment there are 383543 active FIDE players. Among them, slightly less than one third (107320 players) are rated.

As noted by others, the FIDE rating floor is 1000: 


  "Players whose ratings drop below 1000 are listed on the next list as ‘delisted’. Thereafter, they are treated in the same manner as any other unrated player." (FIDE Rating Regulations effective from 1 July 2014, article 7.21).


From that I understand that players going below 1000 Elo are unrated at all effects. However, the list shows 14 people with a rating of 0 (I do not know what this means, though).

For rated players, please see the figure below. It shows the number of FIDE active rated players for different Elo intervals: 1000-1100, 1100-1200, etc. So, to answer your last three bullets, as of 15th Sep. 2014:


there are 31603 players with Elo higher than 2000, or 8.2% of the
total
there are 10220 players with Elo higher than 2200, or 2.7% of
the total 
there are 768 players with Elo higher than 2500, or 0.2% of
the total