condition mean min max 4 h after light 3.9459733333333333 3.77746 4.1346680000000005 8 h after light 2.7531326666666667 1.7645950000000001 3.2867330000000003 12 h after light 2.128981 1.671545 2.62987 16 h after light 3.78694 3.2806800000000003 4.433967 4 h after dark 3.2495586666666667 2.98843 3.6498660000000003 8 h after dark 2.0378423333333333 1.6877220000000002 2.260687