I wouldn't have thought there were many either.
The chances of something happening are the same as during the day.
Structural failure the out come is going to be the same day or night.
During the day from my limited knowledge your chances of walking away are pretty good in the UK from a power plant failure. The aircraft/pride might be a bit hurt but that's not the end of the world.
The only thing different at night is choosing your crash site and being able to deal with all the other good stuff of putting it down with a crappy landing light showing you the way. Night it will be more luck than judgement.
You then get into the realms of the emergency services being able to find you.
Now I have a link to the report of the crash up at my old school please be aware that the best friend of the lad that died is an active PPruner. If sir you wish me to remove the link please don't hesitate to PM me.
http://www.aaib.gov.uk/cms_resources...le=/G-BWPG.pdf
And to add I believe it's illegal to fly at night in a single in France. And that info that Big piston provided is worse than I expected!!!!!