condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.079419 0.0 0.238257 9 h after light 0.0 0.0 0.0 12 h after light 0.1763155 0.0 0.705262 3 h after dark 0.0 0.0 0.0 6 h after dark 0.13906633333333332 0.0 0.417199 9 h after dark 0.08851166666666667 0.0 0.265535 12 h after dark 0.0 0.0 0.0