condition mean min max 0 h after light 86.9919 78.0179 95.9659 2 h after light 22.4255 19.7925 25.0585 4 h after light 18.119950000000003 16.9872 19.2527 8 h after light 16.67865 15.1812 18.1761 12 h after light 19.5217 19.0307 20.0127 2 h after dark 30.01955 29.2854 30.7537 4 h after dark 40.5887 40.0878 41.0896 8 h after dark 74.83955 70.8008 78.8783 12 h after dark 91.202 83.136 99.268