True, you might think it is useful but comparing to others is a bit like comparing chaulk with cheese. You might be able to observe some general effect but there are too many variables. If you look at a non-diabetic study regarding how to plan diets: "Blood sugar level responses to foods are highly individual" Wiesman institute 19/1/2015 demonstrates that the composition of one person's bowel bugs predicts their individual response to food from another person so you would need to also swap information about individual bowel bug composition as well as BSLs, treatment, actual diet, sensitivity to season and weather change plus level of stress vs the effect of any recent exercise to really have any valid level of comparison. But whatever you find useful, please indulge yourself !!