condition mean min max 2 h after light 0.03355631666666667 0.0 0.0590373 6 h after light 0.0 0.0 0.0 10 h after light 0.0 0.0 0.0 14 h after light 0.0 0.0 0.0 18 h after light 0.0072329000000000004 0.0 0.0433974 2 h after dark 0.0126528 0.0 0.0759168