condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.190935 0.0 0.572805 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 1.4155166666666665 0.0 2.60689 6 h after dark 0.5273143333333333 0.0 0.932562 9 h after dark 0.0 0.0 0.0 12 h after dark 0.3227135 0.0 0.645427