Good thing you asked, I had missed one detail!

The people surveyed are all living in continental France, but were either born in, or have one parent born in one of the Départements d'Outre-Mer (Martinique & Guadeloupe in the Caribbean, Réunion island in the Indian Ocean, and French Guyana, all of which are an integral part of France, ie. they have representatives in the Senate, the same administration services as continental France etc ... not to be mistaken for the Territoires d'Outre Mer and Collectivités Territoriales, which are French Polynesia, St Pierre et Miquelon, New Caledonia, Mayotte etc ie. places with a degree of autonomy).

Also, this distrubtion is rather interesting:

I initially misread your comment thinking it said "rather disturbing" (probably suggested by the earlier "distrub" [sic]).

I too think it is interesting, and disturbing as well.

On the other hand, I was reassured by the results of the following quesstion:

Have you ever been a victim of discrimination when ...?

I found the number of people who have felt discrimination in those situations was less than what I had expected.  Interestingly, Alex below sees the same numbers and writes:

So it's really quite frightening that even inhabitants of France inform us in this poll that they have been subject to some form of discrimination (one in two when looking for a flat). I already knew this was a trend, it's just always worse to see it in numbers.

I am glad to find that these numbers though significant, are less than I had imagined, and also that, relatively low though they might be in my estimation, for Alex they are already "frightening" and unacceptable.  I hope this is the prevalent view on racism in France.

I am curious whether there have been similar surveys in the past, and whether and how these numbers have changed.

Point n'est besoin d'espérer pour entreprendre, ni de réussir pour persévérer. - Charles le Téméraire

I wish they gave more information on this question. The note in the corresponding tables says "Total above 100, the interviewees "ayant pu" having been able to give two answers". It would be interesting to know what the exact question and answers were. If the question was open-ended the grouping of responses was done by the person doing the interview or the person doing the data analysis not the person being interviewed. However, if the responses were really open ended then out of the 497 people interviewed someone would have probably given an answer that fit into more than just two groups, such as "French and Black from Guadeloupe", which leads me to wonder how the question was phrased and the data coded. Some of the respondents may have thought of themselves as having one clear identity such as "French from Martinique" but that one identity is nowhere in the reported responses. Others may have answered "French and Martiquer" or "Black and French" and thought of those identities as more separate and yet of equal rank such that they would have answered both when asked what they consider themselves "avant tout" first and foremost.  What is interesting is that 92% of respondents describe themselves in such as way that they fit into more than one of the survey categories what we would be nice to know is how they actually described themselves.

I wonder what result you would get if you asked the same question for regions within metropole France. For example do you consider yourself, first and formost...?
French
Breton (from Britanny)
Basque
or even Toulousain, Bordelais or Marseillais (from Toulouse, Bordeaux or Marseille in the same way people talk of themselves as New Yorkers)

Another interesting survey question is:
For you is "le repli communautaire" (hard to translate but the closest would probably be the resurgence of cultural/religious group identification )?
53% A danger
34% A way of protecting oneself against racism and discrimination
and there were 13% Undecided respondents

Only one:

France is having refluxes of discriminatory opinion these days, borne not from authentic racism, but from a dangerous parallel played by Sarkozy in particular, which consists of equating immigration youths to crime.

Just a quick glance at leaks from the "crime prevention law" he is preparing, tells us as much. For example, in it it is said that in families of foreign origin, mothers must talk to their children in French at home so that their kids grow up to speak only French (!!). It is implied in my opinion that no one cares whether the son of an English factory worker at Airbus in Toulouse speaks English better than French, but that the danger rests with mothers speaking guttural languages coming possibly from the Middle East or tropical places. Imagine that ... when language becomes an issue in "crime prevention". Tsss. What's more, this kind of statement is absurd, as anyone not of forein origin, can then talk to their kids in Arabic only, since they are not targeted by the text ...

So in a France which is being further and further manipulated into believing that immigration = crime, France is becoming racist towards itself too. Because the Départements d'Outre-Mer are France. They're not populated with Malians or Senegalese black men who come to do menial jobs and "steal our money" (to quote Chirac) and our hot babes, they're populated with (majoritarily black) Frenchmen.

So it's really quite frightening that even inhabitants of France inform us in this poll that they have been subject to some form of discrimination (one in two when looking for a flat). I already knew this was a trend, it's just always worse to see it in numbers.

But I am an optimist and I believe that any crisis precedes better times ... so the fact that there is so much talk on all these issues will get people to confront them one day or another.