condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0457288 0.0 0.0914576 8 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.13742264999999998 0.0921283 0.182717 12 h after dark 0.04530945 0.0 0.0906189