condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0383947 0.0 0.0596881 9 h after light 0.041506966666666666 0.0 0.0653951 12 h after light 0.04020755 0.0 0.105427 3 h after dark 0.07375286666666667 0.0 0.13583 6 h after dark 0.042113 0.0 0.0676676 9 h after dark 0.09112433333333333 0.0 0.149674 12 h after dark 0.0 0.0 0.0