Re: [skup] Article on regulating BASE jumping - Switzerland
Well they didn't get it by dividing the claimed ave annual death rate (6) into the ave annual number of participants (650)...1/108.
IIRC, its based on some research done a few years ago, something like number of BFL #s with a BASE #, divided into the number of BASE numbers issued at that point.
The fact is, life has a 100% death rate. BASE doesn't come close.