condition mean min max 0 h after light 4.14199 0.0 8.28398 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 3.864305 0.0 7.72861 2 h after dark 0.0 0.0 0.0 4 h after dark 3.697995 0.0 7.39599 8 h after dark 0.0 0.0 0.0 12 h after dark 4.107055 0.0 8.21411