condition mean min max 4 h after light 4.271064333333333 2.9979270000000002 5.5678019999999995 8 h after light 2.2020416666666667 1.492712 2.581275 12 h after light 1.932926 1.5975629999999998 2.127401 16 h after light 3.6365363333333334 3.4572800000000004 3.981001 4 h after dark 3.723365 2.192384 6.089149 8 h after dark 1.563036 1.528018 1.5809959999999998