I am modeling a product system in which transport flows are very relevant processes in terms of impact results. For the transport flows I am using basic uncertainty 2.0, according to the ecoinvent table of basic uncertainties. When I calculate Monte Carlo Simulations, the total uncertainty ends up very high, with 95% percentile being more than 2 times higher than the mean. I wonder if I should use this 2.0 value in the basic uncertainty field. Thanks. 
