That's an excellent safety record. It's better than the airline industry can manage.
I know for sure that trains in the UK are now extremely safe. The last few high profile accidents have all been caused by motorists. Otherwise fatalities average to something like 10-20 per year. And that's mostly because of a handful of very big accidents a few years ago.
For comparison, car fatalities in the UK run at more than 3,000 per year. I don't know what the figure worlwide is, but it's certainly going to be a non-trivial number.
http://www.hse.gov.uk/press/2004/e04132.htm http://www.hse.gov.uk/PRESS/2005/e05098.htm
for the official UK figures.