condition mean min max 0 h after light 0.682945 0.0 1.36589 2 h after light 1.18694 0.0 2.37388 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.51514 0.0 1.03028 8 h after dark 0.58136 0.0 1.16272 12 h after dark 0.0 0.0 0.0