Measure 2

 Measure 2 is interesting only because of its relationship to BIS recommendations. In terms of this measure, if we looked only at the $99\%$ level - which is the legally defined relevant level - the best model is clearly model 5 - based on figure 2m for the green zone frequency. This is however not unexpected in view of the appearance that model 5 is extremely conservative in terms of figures 1u and 1m. While model 5 is the only one which is $100\%$in the green, figure 2m shows that none of the models - barring model 2 - are ever significantly in the red zone.