condition mean min max 0 h after light 173.1575 165.654 180.661 2 h after light 99.2165 95.86 102.573 4 h after light 73.9479 63.7602 84.1356 8 h after light 112.3955 108.836 115.955 12 h after light 121.1185 104.838 137.399 2 h after dark 119.7675 113.298 126.237 4 h after dark 108.4165 103.603 113.23 8 h after dark 176.121 173.342 178.9 12 h after dark 152.518 128.065 176.971