condition mean min max 0 h after light 12.92315 11.7897 14.0566 2 h after light 10.547899999999998 10.3502 10.7456 4 h after light 6.83904 5.53876 8.13932 8 h after light 6.5972 5.69504 7.49936 12 h after light 9.18675 9.0399 9.3336 2 h after dark 8.826405000000001 8.28753 9.36528 4 h after dark 8.967915 8.89454 9.04129 8 h after dark 13.046 12.5477 13.5443 12 h after dark 12.10595 12.0436 12.1683