condition mean min max 4 h after light 3.475653 3.4094019999999996 3.594698 8 h after light 2.4909646666666667 1.548902 2.9710509999999997 12 h after light 2.1765546666666666 1.746478 2.5967740000000004 16 h after light 3.383123 2.78649 4.008032 4 h after dark 3.0128873333333335 2.620345 3.3100160000000005 8 h after dark 1.8010380000000001 1.651154 1.9553150000000001