condition mean min max 0 h after light 1.8219349999999999 1.63319 2.01068 4 h after light 2.16889 2.10938 2.2284 8 h after light 2.4280749999999998 2.04775 2.8084 4 h after dark 2.22881 1.95709 2.50053 8 h after dark 2.567395 2.54472 2.59007 12 h after dark 1.883385 1.2394 2.52737