condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.03847055 0.0 0.0828932 3 h after dark 0.0 0.0 0.0 6 h after dark 0.08724433333333333 0.0 0.261733 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0