condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.0 0.0 0.0 14 h after light 0.028717000000000003 0.0 0.172302 18 h after light 0.056494 0.0 0.197442 2 h after dark 0.04628616666666666 0.0 0.277717