condition mean min max 4 h after light 5.306945000000001 5.10334 5.51055 8 h after light 3.808775 3.63124 3.98631 12 h after light 5.3799 4.72543 6.03437 4 h after dark 6.526715 6.31754 6.73589 8 h after dark 6.072185 5.87096 6.27341 12 h after dark 6.482419999999999 6.20751 6.75733