condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.08875833333333333 0.0 0.137983 9 h after light 0.045561333333333336 0.0 0.136684 12 h after light 0.030465 0.0 0.12186 3 h after dark 0.06582966666666666 0.0 0.197489 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.18159 0.0 0.36318