condition mean min max 4 h after light 62.47233 56.810801 68.133859 8 h after light 79.4946355 53.966757 105.022514 12 h after light 151.8449385 107.3894 196.300477 4 h after dark 208.7860045 183.18769 234.384319 8 h after dark 169.655134 115.30898 224.001288 12 h after dark 109.10116 109.10116 109.10116