condition mean min max 0 h after light 3.4143749999999997 2.76815 4.0606 4 h after light 3.51572 3.42494 3.6065 8 h after light 6.734425 5.93753 7.53132 4 h after dark 5.4469449999999995 4.87396 6.01993 8 h after dark 4.056335 3.73114 4.38153 12 h after dark 2.632365 2.27078 2.99395