Yep, they have it over here in France too. This was actually my first Gay Pride parade ever - much less in France (I'm warming up for a full fledged general strike that I know will come in the Fall).
Not sure about the exact numbers of all who attended, but the parade was pretty long. I was a little tired of the techno music by the end of the day, but all in all it was good. In true fashion for these things, even though the drag queens represented 1% of the total participants, they got 90% of the attention - I hate competition. Of course, me in my navy blue short sleeved shirt and jeans looked positiviely Republican.