condition mean min max 4 h after light 90.6055 89.7555 91.4555 8 h after light 82.41155 79.3381 85.485 12 h after light 96.0386 95.1543 96.9229 4 h after dark 112.6815 109.8 115.563 8 h after dark 116.045 115.985 116.105 12 h after dark 121.71450000000002 114.891 128.538