Table 4.

Level of risk according to its gravity (Cram from Bourgogne Franche Comte 2008)

Gravity of risk: GR	Level of risk
< 5	Very low
5 < GR < 15	Low
15 < GR < 25	Medium
25 < GR < 35	Featured
35 < GR < 50	Very large
50 < GR < 70	Danger
> 70	Severe or imminent