• Relative risks (c. 1980)

	Risk per person per year (x10-5)
	Smoking (20 cigarettes per day) 	= 500 
	Motorcycling				= 200
	Rock climbing				= 120
	Drinking (1 bottle of wine per day)	=  75
	Car driving				=   4
	
	Risk per person per year (x10-7)
	Release from atomic power station	=   1
	Falling aircraft			=   1   (USA)
	Chemical explosion (pressure vessel)    =   0.5
	Falling aircraft			=   0.2 (UK)
	
	T. Kletz, The Assessment of Benefits and Risks in
	Realtion to Human Needs.   In R.F. Griffiths (ed)
	Dealing with Risk, MUP, 1984.

• Do you trust these figures?